# Mathematics Grade 11 P2 Eastern Cape November 2012 QP (Eng)

> Grade 11 Mathematics Paper 2 question paper from the Eastern Cape November 2012 (English), 16 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/math-p2-n12-qp-eng/5aceccaa-6fcd-4479-830d-94b5802ce5d5
- Updated: 2026-09-27
- Subject: Mathematics
- Grade: Grade 11
- Document type: Question paper
- Year: 2012
- Exam period: Eastern Cape November
- Paper: 2
- Curriculum: CAPS
- Pages: 16

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## About this document

Mathematics · Grade 11 · Eastern Cape November · 2012. Question paper, 16 pages. Read online or download the PDF.

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## Document text

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                         Province of the
                         EASTERN CAPE
                         EDUCATION

                                  NATIONAL
                             SENIOR CERTIFICATE

                                     GRADE 11

                                NOVEMBER 2012

                             MATHEMATICS P2

MARKS:       150

TIME:        3 hours

                                  *MATHE2*

  This question paper consists of 13 pages, including 2 diagram sheets and an information sheet.

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2                                    MATHEMATICS P2                               (NOVEMBER 2012)

INSTRUCTIONS AND INFORMATION

Read the following instructions carefully before answering the questions.

1.     This question paper consists of 12 questions. Answer ALL the questions.

2.     Clearly show ALL calculations, diagrams, graphs, et cetera, which you have used
       in determining the answers.

3.     An approved scientific calculator (non-programmable and non-graphical) may be
       used, unless stated otherwise.

4.     Round off your answers to TWO decimal places if necessary, unless stated
       otherwise.

5.     Diagrams are NOT necessarily drawn to scale.

6.     Two diagram sheets for answering QUESTION 2.2, QUESTION 4.1 and 4.2,
       QUESTION 7.2.2 and QUESTION 11.2 are attached at the end of this question
       paper. Write your name on them and insert them in your answer book.

7.     Number the answers correctly according to the numbering system used in this
       question paper.

8.     Write legibly and present your work neatly.

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(NOVEMBER 2012)                                                    MATHEMATICS P2                                  3

 QUESTION 1

                                         14

           Fuel Consumption in l/100km
                                         12
                                         10
                                          8
                                          6
                                          4
                                          2
                                          0
                                              0        20    40     60        80     100      120   140   160
                                                                         Speed in km/h

 1.1    State whether a linear, quadratic or exponential function would best fit the data in
        the above scatter plot.                                                                                  (1)

 1.2    A researcher says that if you drive at 160 km/h, you are likely to consume more
        than 12 l/100km. Do you agree with the researcher? Justify your answer.                                  (2)

 1.3    What advice would you give to drivers about their driving speed in order to keep
        fuel consumption to the minimum?                                                                         (2)
                                                                                                                 [5]
 QUESTION 2

 The following are the marks (out of 50) obtained by10 randomly selected grade 11
 learners in a test:

           31                                     22    25    11     44        35        36   42    18    49

 2.1    Determine the following:

        2.1.1 the median                                                                                         (2)

        2.1.2 the semi-interquartile range                                                                       (3)

 2.2    Draw a box and whisker diagram using the information in QUESTION 2.1.
        Use DIAGRAM SHEET 1.                                                                                     (4)

 2.3    Hence, comment on the distribution of data.                                                              (1)
                                                                                                                [10]

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4                                    MATHEMATICS P2                               (NOVEMBER 2012)

QUESTION 3

The mean age of the first 13 spectators who went to St George’s Park to watch an ODI
(South Africa versus Australia) cricket match is 27. The 13 ages are given below:

             20      32   25   14   x    38   22    30   19    28   34    40     25

3.1    Calculate the value of x.                                                            (2)

3.2    Hence, determine the standard deviation for the ages.                                (3)

3.3    Determine how many of the spectators had an age which is within one standard
       deviation of the mean.                                                               (2)
                                                                                            [7]

QUESTION 4

The following table represents the marks achieved by 65 grade 11 learners in a
Mathematics test out of 40 marks:

          Interval                      Frequency              Cumulative frequency
                                             5
                                             9
                                            14
                                            17
                                            11
                                             7
                                             2

4.1    Complete the cumulative frequency table using DIAGRAM SHEET 1.                       (2)

4.2    Draw the ogive (cumulative frequency graph) for the above data using
       DIAGRAM SHEET 1.                                                                     (3)

4.3    The school decided to reward learners who obtained 80% and above. How many
       learners were rewarded?                                                              (3)
                                                                                            [8]

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(NOVEMBER 2012)                      MATHEMATICS P2                                5

 QUESTION 5

 In the diagram below, STAR is a quadrilateral with vertices S         ,T   ,
 A            and R          .
 B is the midpoint of RT. SBA is a straight line.

                                                      y
                       S(-6 ; 4)
                                          T(-1 ; 3)

                                                                       x

          R(-7 ; -1)

                                                          A(p ; -17)

 5.1    Show that ΔSTR is isosceles.                                             (4)

 5.2    Determine the coordinates of B, the midpoint of RT.                      (3)

 5.3    Determine the equation of line SA.                                       (4)

 5.4    Hence, calculate the numerical value of p.                               (3)

 5.5    Determine whether AS is perpendicular to TR or not.                      (3)

 5.6    What type of quadrilateral is STAR? Give reasons for your answer.        (3)
                                                                                [20]

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6                                      MATHEMATICS P2                            (NOVEMBER 2012)

QUESTION 6

P, Q(7 ; 6) and R(4 ; –6) are the vertices of ΔPQR. P is on the x-axis.
The equation of PR is x + y + 2 = 0.
  and 𝛼 are the angles of inclination of PQ and QR respectively as shown in the diagram.

                           y
                                                      Q(7 ; 6)

                                                𝛼           x
                P              O

                                          R(4 ; -6)

6.1    Determine the equation of a line parallel to PR passing through Q.                   (3)

6.2    Determine the gradient of QR.                                                        (2)

6.3    Determine the coordinates of P.                                                      (2)

6.4    Determine the coordinates of T, if TPRQ is a parallelogram.                          (3)

6.5    Determine the size of ̂ .                                                            (5)
                                                                                           [15]

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(NOVEMBER 2012)                        MATHEMATICS P2                                           7

 QUESTION 7

 7.1    R(6 ; -1) is a point on the Cartesian plane. Determine the co-ordinates of R/, the
        image of R, if:

        7.1.1 R is rotated about the origin through 90° in a clockwise direction.             (2)

        7.1.2 R is reflected in the line y = 0.                                               (2)

 7.2    ΔDEF is transformed to its image ΔD//E//F// as follows:
                   Reflection in the x-axis (y = 0),
                   Followed by a translation of 3 units to the left.

        7.2.1 Determine a single rule that transformed ΔDEF to ΔD//E//F//.                    (4)

        7.2.2 Hence or otherwise, draw ΔD//E//F// if the vertices of ΔDEF are D(4 ; 3),
              E(0 ; -1) and F(5 ; -2). Use DIAGRAM SHEET 2.                                   (4)

        7.2.3 Comment on the rigidity of the transformation of ΔDEF to ΔD//E//F//.            (2)

 7.3    Quadrilateral KLMN is enlarged to K/L/M/N/ using a scale factor of 3.

        7.3.1 Write down the coordinates of N/ if N is the point N(½ ; -2).                   (2)

        7.3.2 Determine the perimeter of K/L/M/N/ if the perimeter of KLMN is 10
              units.                                                                          (2)

 7.4    Describe in words the rule for rotating T(-4 ; 1) to T/( -1 ; -4 ).                   (2)
                                                                                             [20]

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8                                      MATHEMATICS P2                                 (NOVEMBER 2012)

QUESTION 8

The diagram below shows a new container used for oil that is to be sold at garages. The
container is made up of a cylinder and a cone. The height, h, of the cylinder is 15 cm and
the slant height, s, of the cone is 10 cm.

(Formulae: V = area of base × H,      V = π r2h,      SA = π r2 + 2π r h,     SA = π r s)

                                                     s
                                                H

                                                              h

8.1    Determine the radius, r, if the volume of the cylinder is 4 000 cm3.                     (3)

8.2    Hence, determine the total volume of the container.                                      (4)

8.3    Calculate the total surface area of the container.                                       (4)
                                                                                               [11]

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(NOVEMBER 2012)                         MATHEMATICS P2             9

 QUESTION 9

 9.1    If sin 29° = p determine the following in terms of p:

        9.1.1 cos 29°                                            (3)

        9.1.2 tan (-569°)                                        (2)

        9.1.3 1 – cos 2 61°                                      (2)

 9.2    Prove the following identity:

        (             )
                                                                 (5)
                                                                [12]

 QUESTION 10

 10.1   Simplify without using a calculator:

                                                                 (8)

 10.2   Determine the general solution of:

        sin x – 3cos x = 0                                       (4)

 10.3   Solve for 𝛼 if:

            √     = 1 for 𝛼   [90°; 270°]                        (3)
                                                                [15]

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10                                    MATHEMATICS P2                                 (NOVEMBER 2012)

QUESTION 11

Given: f(x) =   sin x and g(x) = cos ( x   30°)

11.1   Write down the maximum value of 3.g(x).                                                 (1)

11.2   Sketch the graphs of f and g on the same system of axes on
       DIAGRAM SHEET 2 for x [ 180° ; 180°].                                                   (6)

11.3   Use your graph to determine the values of x, for x    [ 180° ; 180°], for which:
       g(x) – f(x) ≤ 0                                                                         (4)

11.4   Answer the following questions:

       11.4.1   Write down the equation of h if h is the translation of g by 60° to the
                right and 1 unit up.                                                           (2)

       11.4.2   Determine the maximum value of h(x) – f(x).                                    (2)

11.5   Explain why the reflection of f in the x-axis and the reflection of f in the y-axis
       will both result in the same graph.                                                     (2)
                                                                                              [17]

QUESTION 12

Trapezium PQRT is a plot of land bought by a farmer. RST is a straight line.
ΔQRS is right-angled at R and PQST is a parallelogram.
QR = 40 m, ̂          and ̂          .

                        P                            Q

                                                     40 m

                                     85°       30°   R
                 T                         S

12.1   Calculate the length of QS.                                                             (2)

12.2   Calculate the length of PQ.                                                             (3)

12.3   Determine the area of the trapezium PQRT.                                               (5)
                                                                                              [10]

                                                                                TOTAL:         150

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(NOVEMBER 2012)                               MATHEMATICS P2                                                        11

                                        INFORMATION SHEET: MATHEMATICS

        b  b 2  4ac
 x
             2a
 A  P(1  ni)       A  P(1  ni)                  A  P(1  i) n                       A  P(1  i) n
   n                   n
                             n(n  1)
                                                                                               2a  (n  1)d 
                                                                                               n
      1 n                i                        Tn  a  (n  1)d                   Sn 
 i 1                i 1       2                                                              2
 Tn  ar n1                      Sn 
                                          
                                         a r n 1  ;         r 1              S 
                                                                                        a
                                                                                            ; 1  r  1
                                           r 1                                        1 r

 F
        
    x 1  i   1
                  n
                                          P
                                                x[1  (1  i)n ]
           i                                            i
                 f ( x  h)  f ( x )
 f ' ( x)  lim
            h 0          h
                                                      x1  x2 y1  y2 
  d  ( x 2  x1 ) 2  ( y 2  y1 ) 2               M       ;        
                                                      2          2 
                                                                       y  y1
  y  mx  c                       y  y1  m( x  x1 )           m 2                           m  tan 
                                                                       x 2  x1
  x  a2   y  b2  r 2
                    a     b     c                                                                         1
 In ABC:                                         a 2  b 2  c 2  2bc. cos A         area ABC         ab. sin C
                  sin A sin B sin C                                                                       2

 sin     sin . cos  cos.sin                       sin     sin . cos  cos.sin 
 cos     cos . cos   sin  . sin                    cos     cos . cos   sin  . sin 
           cos2   sin 2 
           
 cos 2  1  2 sin 2                                sin 2  2 sin  . cos 
           2 cos2   1
           
 ( x ; y)  ( x cos  y sin  ; y cos  x sin  ) ( x ; y)  ( x cos  y sin  ; y cos  x sin  )
                                                                        n        2

     fx                                                                 x  x 
                                                                            i
 x                                                             i 1
                                                                    2

        n                                                                   n
         n( A)
 P( A)                                                       P(A or B) = P(A) + P(B) – P(A and B)
         nS 

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12                                                         MATHEMATICS P2                                                     (NOVEMBER 2012)

                                                       DIAGRAM SHEET 1

NAME:

QUESTION 2.2

                                                                                                                                          x
              10            15         20        25        30        35         40             45         50        55          60

QUESTION 4.1

                                 Interval                       Frequency                           Cumulative frequency
                                                                     5
                                                                     9
                                                                    14
                                                                    17
                                                                    11
                                                                     7
                                                                     2

QUESTION 4.2
          y

     80

     70

     60

     50

     40

     30

     20

     10

                                                                                                                                      x
                   5   10        15   20    25   30   35   40   45    50   55        60   65        70   75    80   85   90      95

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(NOVEMBER 2012)                                   MATHEMATICS P2                                                       13

                                                  DIAGRAM SHEET 2

 NAME:

 QUESTION 7.2.2
                                                                y

                                                          5

                                                          4

                                                          3

                                                          2

                                                          1

                                                                                                                  x
                -5          -4         -3    -2     -1                  1        2        3        4         5

                                                          -1

                                                          -2

                                                          -3

                                                          -4

                                                          -5

 QUESTION 11.2
                                                                    y

                                                               1

                                                                                                                         x
 -180    -150        -120        -90        -60     -30                     30       60       90       120       150   180

                                                               -1

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