# Mathematics Grade 12 P1 NSC November 2025 Memo (Afrikaans)

> Grade 12 Mathematics Paper 1 memorandum from the NSC November Exam 2025 (Afrikaans), 21 pages. Read online or download the free PDF.

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- Updated: 2026-09-28
- Subject: Mathematics
- Grade: Grade 12
- Language: Afrikaans
- Document type: Memorandum
- Year: 2025
- Exam period: NSC November Exam
- Paper: 1
- Curriculum: CAPS
- Pages: 21

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Mathematics · Grade 12 · NSC November Exam · 2025 · Afrikaans. Memorandum, 21 pages. Read online or download the PDF.

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### Page 1

NATIONAL
                                  SENIOR CERTIFICATE/
                                   NASIONALE SENIOR
                                      SERTIFIKAAT

                                        GRADE 12/GRAAD 12

                             MATHEMATICS P1/WISKUNDE V1

                                         NOVEMBER 2025

                       MARKING GUIDELINES/NASIENRIGLYNE

MARKS/PUNTE: 150

                            These marking guidelines consist of 21 pages.
                             Hierdie nasienriglyne bestaan uit 21 bladsye.

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### Page 2

Mathematics P1/Wiskunde V1                                      2                                  DBE/November 2025
                                             NSC/NSS – Marking Guidelines/Nasienriglyne

NOTE:
• If a candidate answers a question TWICE, only mark the FIRST attempt.
• Consistent Accuracy applies in all aspects of the marking guidelines.

LET WEL:
• Indien 'n kandidaat 'n vraag TWEE keer beantwoord, sien slegs die EERSTE poging na.
• Volgehoue akkuraatheid is DEURGAANS op ALLE aspekte van die nasienriglyne van
   toepassing.

QUESTION 1/VRAAG 1

 1.1.1       ( x + 5)( x − 2 ) = 0
             x = −5 or x = 2                                                        ✓ x = −5
                                                                                    ✓ x=2
                                                                                                                 (2)
 1.1.2       5 x + 2 = −9 x
                2

             5x2 + 9 x + 2 = 0                                                      ✓ standard form

                     −9        ( 9 ) − 4 ( 5 )( 2 )
                                    2
                                                                                    ✓ substitution into the
             x=
                                    2 ( 5)                                            correct formula
                 −9  41
             x=
                     10
             x = −0, 26 or x = −1, 54                                               ✓ answer
                                                                                    ✓ answer
                                                                                                                 (4)
 1.1.3       8x  2x
                2

             8x2 − 2x  0                                                           ✓ standard form
             2 x ( 4 x − 1)  0
                                    1                                               ✓ critical values/factors
            CV: 0 ;
                                    4

                            0

                                        1
             x  0 or x                                                            ✓✓ answer
                                        4
                                                                                                                 (4)
 1.1.4       2.2 − 9.2 + 4 = 0
                    2x          x

             (2.2x − 1)(2x − 4) = 0                                                 ✓factors
                  1
             2x =                 or              2x = 4
                  2
             2 x = 2 −1                            2 x = 22                         ✓ both equations
             x = −1                                x=2                              ✓ answer
                                                                                    ✓ answer
                                                                                                                 (4)

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### Page 3

Mathematics P1/Wiskunde V1                                3                                  DBE/November 2025
                                       NSC/NSS – Marking Guidelines/Nasienriglyne

            OR/OF                                                             OR/OF
            2.2 − 9.2 + 4 = 0
                  2x       x

            Let k = 2 x
            2k 2 − 9k + 4 = 0
            ( 2k − 1)( k − 4 ) = 0                                            ✓factors
                1
            k = or k = 4
                2
                   1
             2x =   or 2 x = 4                                               ✓ both equations
                   2
             x = −1 or x = 2                                                 ✓ answer
                                                                              ✓ answer
                                                                                                           (4)
 1.1.5            1      1
                    +2 =
                  x       x
                               2
                      1     1 2
                        +2 =                                               ✓ squaring both sides
                      x     x 
                          
                  1     1
                    +2=
                  x     x
                 1   1
                    = −2                                                      ✓ isolation of surd
                  x x
                       2           2
              1  1                                                        ✓ squaring both sides only
                   =  x − 2
              x                                                             after isolation of surd
             1 1 4
                =     − +4
             x x2 x
              1 5
                 − +4=0
             x2 x
             4x2 − 5x + 1 = 0                                                 ✓ standard form
             (4 x − 1)( x − 1) = 0
                    1
               x=        or x  1                                             ✓ answer with selection
                    4
                                                                                                           (5)
            OR/OF                                                             OR/OF

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### Page 4

Mathematics P1/Wiskunde V1                               4                                  DBE/November 2025
                                      NSC/NSS – Marking Guidelines/Nasienriglyne

 1.1.5          1       1
                  +2 =
                x        x
                  1
            Let      =k
                   x
               k +2 =k
                                                                             ✓ equation
             k + 2 = k2
                                                                             ✓ squaring both sides
             k −k −2=0
              2
                                                                             ✓ standard form
             ( k − 2)( k + 1) = 0

             k = 2 or        k = −1

              1                                 1
                   =2                  or            −1                     ✓ substitution
               x                                x
            2 x =1
            4x = 1
                  1
            x =
                  4                                                          ✓ answer with selection
                                                                                                          (5)
 1.2         x= y+2             …..(1)                                       ✓ x= y+2
             5xy = x 2 + 6      …..(2)                                       ✓ 5xy = x 2 + 6
             5 ( y + 2) y = ( y + 2) + 6
                                      2                                      ✓ substitution

             5 y 2 + 10 y = y 2 + 4 y + 4 + 6
             4 y 2 + 6 y − 10 = 0
             2 y2 + 3 y − 5 = 0                                              ✓ standard form

             ( 2 y + 5)( y − 1) = 0
                  5
             y=−    or y = 1                                                 ✓y-values
                  2
                  1
             x = − or x = 3                                                  ✓ x-values
                  2                                                                                       (6)
            OR/OF                                                            OR/OF
             y = x−2          …..(1)                                         ✓ y = x−2
             5 xy − 6 = x 2 …..(2)                                           ✓ 5 xy − 6 = x 2

             5x( x − 2) − 6 = x 2                                            ✓ substitution
             5 x 2 − 10 x − 6 = x 2
             4 x 2 − 10 x − 6 = 0                                            ✓ standard form
             2x2 − 5x − 3 = 0
             (2 x + 1)( x − 3) = 0
                       1                                                     ✓x-values
               x=−         or x = 3
                       2
                       5                                                     ✓ y-values
               y=−         or y = 1
                       2                                                                                 (6)
                                                                                                        [25]
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### Page 5

Mathematics P1/Wiskunde V1                                5                                   DBE/November 2025
                                       NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 2

 2.1.1       (10 + t ) + ( t − 2 ) + ( t + 4 )
              t −2 t +4                                                         ✓ equating the ratios
                   =
             t + 10 t − 2
                                                                                ✓ cross multiplication
             ( t − 2 ) = ( t + 4 )( t + 10 )
                     2

                                                                                ✓ expansion
            t 2 − 4t + 4 = t 2 + 14t + 40
            −18t = 36                                                                                       (3)
             t = −2
 2.1.2      8 ; − 4 ;...
                                                                                ✓ 8 and − 4
                  −4      1
            r=        =−                                                        ✓r
                  8       2

                                 24
                      1
             T25 = 8  − 
                      2
                         21
                   1
                              or T25 = ( 2 )         or T25 = ( 8 )
                                               −21                    −7
             T25 =                                                       or   ✓ answer in exponential
                   2                                                            form
             T25 = (128 )         or T25 = ( 2 097 152 )
                            −3                                −1
                                                                                                            (3)
                    a
 2.1.3       S =
                  1− r
                       8
             S =
                       1                                                      ✓substitution
                  1−  − 
                       2
                  16
             S =     = 5,33                                                    ✓ answer
                   3
                                                                                                            (2)
 2.2.1       T14 − T6
             = 48
             = 32                                                               ✓✓answer
                                                                                                            (2)
            OR/OF                                                               OR/OF
            T14 − T6
             = ( 4 (14 ) − 1) − ( 4 ( 6 ) − 1)                                  ✓ subs
             = 55 − 23
             = 32                                                               ✓ answer
                                                                                                            (2)
                                                                                OR/OF
            OR/OF
            T14 − T6
             = ( 4 ( k + 13) − 1) − ( 4 ( k + 5 ) − 1)                          ✓ subs
             = 4k + 51 − ( 4k + 19 )
             = 32                                                               ✓ answer
                                                                                                            (2)

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### Page 6

Mathematics P1/Wiskunde V1                           6                                  DBE/November 2025
                                  NSC/NSS – Marking Guidelines/Nasienriglyne

 2.2.2       n = 118 − k                                                 ✓ number of terms

             T117 = 467                                                  ✓ last term
                       118 − k
             S118− k =          4k − 1 + 467                           ✓ substitution
                          2
             26 675 = (118 − k )  2k + 233
             26 675 = 236k + 27494 − 2k 2 − 233k
                                                                         ✓standard form
             2 k 2 − 3k − 819 = 0
            ( k − 21)(2 k + 39) = 0
                                 39
             k = 21 or k  −                                            ✓answer with selection
                                  2
                                                                                                      (5)
            OR/OF                                                        OR/OF

             n = 118 − k                                                 ✓ number of terms

                    118 − k
             S118− k =       2(4k − 1) + (118 − k − 1)(4)              ✓ substitution
                        2
                      118 − k
             26 675 =         8k − 2 + 468 − 4k 
                          2
                                                                         ✓simplification
             53 350 = (118 − k )  4k + 466
             53 350 = 472k + 54 988 − 4k 2 − 466k
             4k 2 − 6k − 1638 = 0                                        ✓ standard form
             2 k 2 − 3k − 819 = 0
            ( k − 21)(2 k + 39) = 0
                                 39                                      ✓answer with selection
             k = 21 or k  −
                                  2
                                                                                                      (5)
            OR/OF
            T1 = 3       T2 = 7
             S117 − S k −1 = 26 675
                    n
             S117 =    2a + (n − 1)d 
                    2
                    117
                  =       2(3) + (116)4 
                     2
                  = 27 495                                               ✓ 27 495
              S k −1 = 27 495 − 26 675 = 820                            ✓ difference
                    n
             820 =     2(3) + 4 n − 4                                  ✓substitution
                    2
             0 = 2n 2 + n − 820                                          ✓ standard form
             (2n + 41)( n − 20) = 0
             n = 20
             k − 1 = 20
              k = 21                                                     ✓answer with selection
                                                                                                     (5)
                                                                                                    [15]

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### Page 7

Mathematics P1/Wiskunde V1                             7                                    DBE/November 2025
                                    NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 3

 3.1          36 ; 71 ; 104 ;            135    ; 164

                 35       33        31         29                                ✓first differences

                     –2

           T5 = 164
                                                                                 ✓ answer             (2)
 3.2        2 a = −2
                                                                                 ✓ 2 a = −2
            a = −1
            3 ( −1) + b = 35
                                                                                 ✓ 3 ( −1) + b = 35
           b = 38
           −1 + 38 + c = 36
                                                                                 ✓ −1 + 38 + c = 36
           c = −1
                                                                                                        (3)
           Tn = −n2 + 38n − 1
 3.3              −38                                                            ✓ method
           n=           = 19
                 2( −1)
                                                                                 ✓ n
            T19 = −(19)2 + 38(19) − 1 = 360                                      ✓ answer
                                                                                                        (3)

                                                                                 OR/OF
           OR/OF
           T / n = −2n + 38 = 0                                                  ✓ method
            n = 19                                                              ✓ n

            T19 = −(19)2 + 38(19) − 1 = 360                                      ✓ answer
                                                                                                        (3)

 3.4        n+3                                                                  ✓ method
                  = 19
              2
            n + 3 = 38
            n = 35                                                               ✓ answer
                                                                                                        (2)
           OR/OF
            − n 2 + 38n − 1 = 104
                                                                                 ✓ method
            n 2 − 38n + 105 = 0
            ( n − 35)( n − 3) = 0                                                ✓ answer
            n = 35
                                                                                                        (2)
                                                                                                       [10]

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### Page 8

Mathematics P1/Wiskunde V1                                  8                                   DBE/November 2025
                                         NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 4
                                             y

                                                   f

                                                                                                       x
                                         O             A

                                                                                  (3 ; t)

 4.1      t = log 1 3
                   3

          t = −1                                                                            ✓ answer        (1)

 4.2      A (1; 0 )                                                                         ✓ answer        (1)

 4.3      f ( x ) = log 1 x
                             3

          y = log 1 x
                       3

          x = log 1 y                                                                       ✓ swopping
                   3
                       x
              1
          y =   = 3− x                                                                    ✓ answer
              3                                                                                            (2)
 4.4      y=0                                                                               ✓ answer
                                                                                                             (1)

4.5                               y
            (−1 ; 3)

                           f −1

                           (0 ; 1)                                                          ✓ decreasing
                                                                                              exponential shape
                                                                                              with asymptote
                                  O                                                   x       y=0
                                                                                            ✓ y-intercept (0 ; 1)
                                                                                            ✓ any point

 4.6      (4 ; 3) is a point on h                                                                               (3)

           0 y3                 or y  (0 ; 3)                                            ✓✓ answer
                                                                                                            (2)
                                                                                                           [10]

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### Page 9

Mathematics P1/Wiskunde V1                                  9                                    DBE/November 2025
                                         NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 5
                    y
                                     g

                                                        P

                                                                                                   g
                                 f                                                    D(5 ; 6)

                                                                                                                   x
         M      O                                             T

 5.1         x  R, x  3                                                              ✓ answer
                                                                                                             (1)
 5.2         y8                                                                       ✓ answer
                                                                                                             (1)
 5.3.1       3 x5         OR/OF x  ( 3;5                                           ✓✓ answer
                                                                                                             (2)
 5.3.2       x  1 or       x  5 OR/OF           x  ( − ;1) or x  ( 5;  )         ✓ x 1
                                                                                       ✓ x5
                                                                                                             (2)
 5.4         y = a( x − 3) + 8
                            2                                                          ✓ p and q values

             6 = a(5 − 3)2 + 8                                                         ✓ substitution (5 ; 6)
             −2 = 4a
                        1
             a = −
                        2
                  1
             y = − ( x − 3) 2 + 8
                  2
                  1
             y = − ( x 2 − 6 x + 9) + 8
                  2                                                                    ✓ simplification
                  1           7
             y = − x 2 + 3x +
                  2           2                                                                              (3)

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### Page 10

Mathematics P1/Wiskunde V1                           10                                   DBE/November 2025
                                   NSC/NSS – Marking Guidelines/Nasienriglyne

 5.5             1           7
            y = − x 2 + 3x +
                 2           2
            x2 − 6x − 7 = 0                                                     ✓ solve for x
            ( x − 7)( x + 1) = 0

            x=7        or     x = −1                                            ✓ x-values
           M(– 1 ; 0)                                                           ✓ coordinates of M
                  −4
            0=       +8                                                         ✓ solve for x
                 x−3
            −8 x + 24 = −4
                 7
            x=
                 2                                                              ✓ x-value
            7 
           T ; 0
            2 

                     7      9
           MT =        + 1 = = 4,5                                              ✓ MT
                     2      2                                                                           (6)

 5.6                  1           7
            f ( x) = − x 2 + 3x +
                      2           2
            f ( x) = − x + 3
              /                                                                 ✓ f / ( x) = − x + 3
            m = f / (5)
            = −5 + 3                                                            ✓ m = f / (5)
            = −2

            6 = −2(5) + c
            c = 16

            y = −2 x + 16                                                      ✓ answer
                                                                                                        (3)
                                                                                                       [18]

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Mathematics P1/Wiskunde V1                           11                                  DBE/November 2025
                                   NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 6
                                                  y
                                                          f
                                                                            g

                                              O                                                     x

                              f

 6.1     (–p ; 0)                                                               ✓ (–p ; 0)
                                                                                                        (1)
 6.2      g ( x) = x + c
          q = 1+ c
                                                                                ✓ q = 1+ c
                                                                                              a
                    a                                                           ✓ f ( x) =       +1+ c
          f ( x) =     +1+ c                                                                 x+c
                   x+c

         Point (0 ; c)
               a
         c=        +1+ c
             0+c
              a
         −1 =
               c
         a = −c

         Point (3 ; 3 + c)
                   a                                                                          a
         3+ c =        +1+ c                                                    ✓ 3+ c =          +1+ c
                 3+ c                                                                        3+ c

                   −c
          3+ c =        +1+ c
                  3+ c
          9 + 6c + c 2 = − c + 3 + 4c + c 2
          3c = −6
          c = −2
          a=2                                                                   ✓a=2
          q = −1                                                                ✓q=–1

                      2
          f ( x) =       −1
                     x−2                                                                                (5)
         OR/OF                                                                  OR/OF

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### Page 12

Mathematics P1/Wiskunde V1                           12                                  DBE/November 2025
                                   NSC/NSS – Marking Guidelines/Nasienriglyne

         0= x+c
          x = −c
                                                                                ✓ q = 1+ c
          q = 1+ c
                                                                                           a
                                                                                ✓ f ( x) =     +1+ c
                     a                                                                    x+c
          f ( x) =      +1+ c
                   x+c                                                          ✓ 3+ c =
                                                                                          a
                                                                                              +1+ c
                   a                                                                     3+ c
          3+ c =       +1+ c
                  3+ c
                a
          2=
              3+ c
          a = 6 + 2c

              6 + 2c
          y=         +1+ c
               x+c
              6 + 2c
         c=          +1+ c
               0+c
               6 + 2c
         −1 =
                  c
         − c = 6 + 2c
          c = −2                                                               ✓a=2
             a=2                                                                ✓q=–1
             q = −1
                                                                                                       (5)
                           2
              f ( x) =       −1
                          x−2
 6.3     Translation of 1 unit down                                             ✓✓ answer
                                                                                                       (2)

         OR/OF                                                                  OR/OF
         Translation of 1 unit to the right                                     ✓✓ answer
                                                                                                       (2)
                                                                                                       [8]

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### Page 13

Mathematics P1/Wiskunde V1                            13                                   DBE/November 2025
                                    NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 7
 7.1       A = P (1 + i )
                            n

                                                                                 ✓ substitution into
           A = 40 000 (1 + 7,8% )
                                     5
                                                                                   correct formula
           A = R58 230, 94                                                       ✓ answer
                                                                                                        (2)
 7.2
             x (1 + i ) − 1
                              n

           F=              
                    i                                                            ✓ i
                      0, 058         24
                                                                                 ✓ substitution into
               2 300  1 +       − 1                                            correct formula
                            4       0, 058 
           F=                            1 +    
                          0, 058              4                                ✓ future value × (1 + i )
                                                                                                          1

                             4
           F = R 66 411, 60                                                      ✓ answer
                                                                                                        (4)
           OR/OF                                                                 OR/OF
                      0, 058  25                                             ✓ i
               2 300  1 +       − 1                                          ✓ substitution into
                            4     
           F=                            − 2300                                    correct formula
                          0, 058
                             4                                                   ✓ – 2300
           F = R66 411,60                                                        ✓ answer
                                                                                                        (4)
 7.3.1     A = P(1 + i)   n

                                          3
                        0, 068 
           A = 900 000  1 +    
                            12 
             = R915 386,86                                                       ✓answer

              x 1 − (1 + i ) 
                             −n

           P=                  
                      i
                                 0, 068  − n 
                        10 000 1 −  1 +     
                                       12  
                                                                                 ✓ substitution into
           915 386,86 =
                                   0, 068                                          correct formula
                                     12
                          −n
            0, 068 
           1 +         = 0, 4812...                                            ✓ correct use of logs
                12 
           −n = log1,005... 0, 4812...
           n = 129, 419... months                                                ✓ answer of n
           132, 419 months since loan was granted
           133 months since loan was granted                                    ✓ final answer
                                                                                                        (5)

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### Page 14

Mathematics P1/Wiskunde V1                         14                                  DBE/November 2025
                                 NSC/NSS – Marking Guidelines/Nasienriglyne

                       0, 068  −0,419... 
              10 000 1 −  1 +                                             ✓ substitution
 7.3.2                        12                                        ✓n
           P=
                           0, 068
                              12
            = R4 173,55…                                                      ✓ balance
                                                     1
                                        0, 068 
           Final payment = 4173, 55... 1 +      = R 4 197, 21               ✓ final payment
                                           12                                                      (4)

           OR/OF                                                              OR/OF
                                        129
                           0, 068 
           A = 915 386,86  1 +    
                               12 
             = R1 897 482,712                                                 ✓answer

                      0, 068 129 
              10 000  1 +      − 1
                          12     
           F=
                         0, 068
                           12
            = R1 893 309,16                                                   ✓ answer

           Balance after 129 months = R4 173,552                              ✓balance

                                                    1
                                       0, 068 
           Final payment = 4 173, 552  1 +     = R 4 197, 21                ✓final payment
                                           12                                                      (4)

                                                                                                   [15]

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### Page 15

Mathematics P1/Wiskunde V1                               15                                  DBE/November 2025
                                       NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 8

 8.1          f ( x ) = −2 x + 3
                              f (x + h ) − f (x )
              f / ( x) = lim                                                        ✓ f ( x + h)
                          h →0        h
                             −2( x + h) + 3 − (−2 x + 3)                            ✓substitution
                      = lim
                        h →0               h
                             −2 h
                      = lim                                                         ✓simplification
                        h→0 h

                      = lim ( −2 )
                         h→ 0
                                                                                    ✓answer
                      = −2
                                                                                                           (4)

             OR/OF                                                                  OR/OF
              f ( x ) = −2 x + 3
              f ( x + h ) = −2( x + h ) + 3                                         ✓ f ( x + h)
              f ( x + h ) − f ( x ) = − 2 x − 2 h + 3 + 2 x − 3 = −2 h              ✓simplification

                               f (x + h ) − f (x )
              f / ( x) = lim
                         h →0          h
                              −2 h
                      = lim                                                         ✓substitution
                        h→0 h

                      = lim ( −2 )
                         h→ 0

                      = −2                                                          ✓answer
                                                                                                           (4)
 8.2.1       g ( x ) = −3x + 2 x
                             4
                                                                                    ✓ −12x   3

             g ( x ) = −12 x + 2
                /                  3                                                ✓2
                                                                                                           (2)

 8.2.2            2x4 + 1
              y=                                                                    ✓ 2x2
                     x2
              y = 2 x2 + x−2                                                        ✓ x −2
              dy
                                                                                    ✓ derivative first
                 = 4 x − 2 x −3                                                       term
              dx                                                                    ✓ derivative second
                                                                                      term
                                                                                                        (4)
                                                                                                       [10]

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### Page 16

Mathematics P1/Wiskunde V1                                16                                      DBE/November 2025
                                        NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 9
                                         y   D

                                                                                            x
                                A        O           B                               C

                                                                               f

                                                                        E
 9.1       f ( x) = x − 8x + 5x + 14
                     3      2

           f / ( x) = 3x 2 − 16 x + 5 = 0                                            ✓ f / ( x)
          (3 x − 1)( x − 5) = 0                                                      ✓ f / ( x) = 0
                 1
          x = or x = 5
                 3
          E(5 ; – 36)                                                                ✓ x-value
                                                                                     ✓ y-value
                                                                                                              (4)
 9.2      f ( x) = 6 x − 16  0
             //
                                                                                     ✓ f ( x)
                                                                                           //

          x
             8                                                                       ✓ f / / ( x)  0
             3                                                                       ✓ answer
                                                                                                              (3)
          OR/OF                                                                      OR/OF
               1
                 +5
               3      8                                                              ✓ midpoint of TPs
          x=        =
                 2    3                                                              ✓ f / / ( x)  0
               8                                                                     ✓ answer
          x
               3                                                                                              (3)
          x-intercepts of f: (– 1 ; 0) and (7 ; 0)                                   ✓✓ x-intercepts
 9.3
                          8                                                          ✓ first interval
          −1  x  2 or      x7                                                    ✓ second interval
                          3
                                                                                                              (4)
 9.4      3 x − 16 x + 5 = −11
             2
                                                                                     ✓ equating
          3 x 2 − 16 x + 16 = 0
          ( x − 4)(3 x − 4) = 0
                             4
          x = 4 or x =                                                               ✓ x-values
                             3
          At x = 4 :        (4)3 − 8(4)2 + 5(4) + 14 = −11(4) + t
                             t = 14                                                  ✓ answer

                                    3            2
                   4        4     4      4           4
          At x =     :        − 8   + 5   + 14 = −11   + t
                   3        3     3      3           3
                                634      13                                          ✓ answer
                             t=     = 23    = 23, 48
                                27       27

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### Page 17

Mathematics P1/Wiskunde V1                            17                                    DBE/November 2025
                                    NSC/NSS – Marking Guidelines/Nasienriglyne

                      634                                                        ✓✓ answer
          14  t                                                                                      (6)
                       27
          OR/OF                                                                  OR/OF
          x 3 − 8 x 2 + 5 x + 14 = −11x + t                                      ✓ equating
          x 3 − 8 x 2 + 5 x + 14 + 11x = t
          x 3 − 8 x 2 + 16 x + 14 = t

          3 x 2 − 16 x + 16 = 0
          ( x − 4)(3 x − 4) = 0
                             4                                                   ✓ x-values
          x = 4 or x =
                             3
          At x = 4 :        (4)3 − 8(4)2 + 5(4) + 14 = −11(4) + t
                                                                                 ✓ answer
                            t = 14

                                3         2
                4           4     4      4           4
          At x = :            − 8   + 5   + 14 = −11   + t
                3           3     3      3           3
                                634      13
                             t=     = 23    = 23, 48                             ✓ answer
                                27       27

                      634                                                        ✓✓ answer
          14  t 
                       27                                                                               (6)

                                                                                                      [17]

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### Page 18

Mathematics P1/Wiskunde V1                              18                                  DBE/November 2025
                                      NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 10

 h                                                                                                           h

                             x
 10.1        2 x + 2h = 50                                                         ✓ 2 x + 2h = 50
             h = 25 − x

             2 r = x
                  x                                                                        x
             r=                                                                    ✓ r=
                 2                                                                       2

             V =  r 2h
                             2
                   x 
             V =        ( 25 − x )
                   2 
                 x2
             V=       ( 25 − x )                                                   ✓ substitution
                4 2
                25 x 2 x 3
             V=         −                                                                                 (3)
                 4       4

 10.2                     50 x 3 x 2
             V / ( x) =       −
                          4    4

                         50 x 3 x 2
             V / ( x) =       −     =0                                                 50 x 3 x 2
                          4    4                                                 ✓       −
                                                                                       4    4
             50 x − 3 x 2 = 0
             0 = x ( 50 − 3x )
                                                                                   ✓ V / ( x) = 0
                                 50
             x  0 or x =
                                  3
                   50
            x =      = 16, 67
                    3                                                              ✓ answer with
                                                                                     selection
                                                                                                          (3)
                                                                                                          [6]

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### Page 19

Mathematics P1/Wiskunde V1                         19                                      DBE/November 2025
                                 NSC/NSS – Marking Guidelines/Nasienriglyne

QUESTION/VRAAG 11

                                                          ENERGY
                                        JUICE                                   TOTAL
                                                          DRINKS
                   Females                a                  72                  120
                     Males               36                  54                   90
                     Total               84                 126                   210

 11.1.1     P ( Male and Prefer juice ) = P ( Male )  P ( Prefer juice )   ✓ P ( M and J ) = P ( M )  P ( J )
             36    90   e                                                       36
                 =                                                         ✓
            210 210 210                                                         210
            e = 84                                                                           90
                                                                            ✓ P (Male) =
                                                                                             210
                                                                                                             (3)
 11.1.2                                              b
            P ( Female and like energy drink ) =
                                                    210
            d = 210 − 84 = 126                                              ✓ d- value
            b = 126 − 54 = 72                                               ✓ b-value
                                                    72 12
            P ( Female and like energy drink ) =       =   = 0,34           ✓ answer
                                                    210 35
                                                                                                             (3)
           OR/OF                                                            OR/OF
           c = 120                                                          ✓ c- value
           b = 72                                                           ✓ b-value
                                                    72 12
            P ( Female and like energy drink ) =       =   = 0,34           ✓ answer
                                                    210 35
                                                                                                             (3)

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Mathematics P1/Wiskunde V1                           20                                  DBE/November 2025
                                   NSC/NSS – Marking Guidelines/Nasienriglyne

 11.2          3         1     7                                                  3
                 ( 3x ) + x =                                                   ✓   ( 3x )
               4         4    12                                                  4
               27 x + 3 x = 7                                                     1
               30 x = 7
                                                                                ✓ x
                                                                                  4
                    7                                                                7
               x=                                                               ✓ =
                    30                                                              12
                28 cups                                                        ✓answer
                                                                                                         (4)
               OR/OF                          C                                 OR/OF

                              R
                   0,75                        W

                                               C
                    0,25
                              S

                                                W
                                                                                   75  3 x 
                75  3 x  25  x  7                                           ✓           
                                                                                100  120 
                           +       =
               100  120  100  120  12                                          25  x 
                 3       1       7                                              ✓          
                     x+     x=                                                    100  120 
                160     480     12                                                   7
               10 x = 280                                                       ✓ =
                                                                                    12
               x = 28 cups of coffee
                                                                                ✓answer
                                                                                                         (4)
                                                                                OR/OF
               OR/OF
                                               C

                               R
                    0,75                        W

                                                C
                     0,25
                               S

                                                  W
                                                                                   75  3(120 − x ) 
                                                                                ✓                 
                75  3(120 − x)  25  120 − x  7                                100  120         
                                +          =                                  25  120 − x 
               100  120           100  120  12                              ✓              
                      9          1                                                100  120 
                270 − x + 30 − x = 70                                                7
                      4          4                                              ✓ =
                 5                                                                  12
               − x = −230
                 2
                x = 92 (bottles of water)                                      ✓answer
                there are 28 cups of coffee                                                             (4)

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### Page 21

Mathematics P1/Wiskunde V1                          21                                  DBE/November 2025
                                  NSC/NSS – Marking Guidelines/Nasienriglyne

 11.3.1        7.6! = 5 040                                                    ✓✓ answer
                                                                                                     (2)

               OR/OF                                                           OR/OF

                7! = 5 040                                                     ✓✓ answer
                                                                                                     (2)
 11.3.2        Possible outcomes:

               A×6×5×B×4×3×2×1
               A×6×5×4×B×3×2×1
               A × 6 × 5× 4 × 3 × B × 2 × 1
               A×6×5×4×3×2×B×1
               A×6×5×4×3 ×2×1×B

                5  6! + 4  6! + 3  6! + 2  6! + 1 6!                      ✓✓ 6! (15)
                = 6!(5 + 4 + 3 + 2 + 1)
                = 6!(15)

                                                                      6!(15)   ✓ 8! in denominator
               P(two or more runners finishing after Andrew) =                     6!(15)    15
                                                                        8!     ✓          or
                  15                                                                 8!      56
                =                                                                                    (4)
                  56
                = 0, 27

               OR/OF                                                           OR/OF

                8!− ( 7!.2 + 2.6.6!)                                           ✓ 8! in numerator and
                                                                                 denominator
                          8!.2                                                 ✓✓ ( 7!.2 + 2.6.6! )
                  15
                =                                                              ✓
                                                                                   15
                  56                                                               56
                                                                                           (4)
                                                                                          [16]
                                                                               TOTAL/TOTAAL: 150

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