# Mathematics Grade 12 P2 KwaZulu Natal Mock 2020 QP

> Grade 12 Mathematics Paper 2 question paper from the KwaZulu Natal Mock Exam 2020, 12 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/2020-grade-12-math-trial-exam-paper-2-kzn/bc1658b3-f847-401c-bc59-8d5e8924854e
- Updated: 2026-09-27
- Subject: Mathematics
- Grade: Grade 12
- Document type: Question paper
- Year: 2020
- Exam period: KwaZulu Natal Mock Exam
- Paper: 2
- Curriculum: CAPS
- Pages: 12

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## About this document

Mathematics · Grade 12 · KwaZulu Natal Mock Exam · 2020. Question paper, 12 pages. Read online or download the PDF.

Read it free online on the page above; download the PDF from there.

## Document text

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### Page 1

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                        education
                        Department:
                        Education
                        PROVI N CE OF KWAZULU-NATAL

                                                   GRADE 12

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                                            MATHEMATICS P2                                                    '.1
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     '.'ttt                      PREPARATORY EXAMINATION                                                      :i
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     t!                                        SEPTEMBER 2O2O                                                 :i
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MARKS: 150

TIME:             3 hours

                   This question paper consists of 11 pages and an information sheet.

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 Mathematics   P2                                      2            Preparation Examination September 2020
                                                 NSC - Grade 12

 INSTRUCTIONS AND INFORMATION

 Read the following instructions carefully before answering the questions:

 l. This question paper consists of 10 questions.
 2. Answer ALL the questions,
 3. Clearly show ALL calculations, diagrams, graphs, et ceter4 which you have used in determining the
     answers.

     Answers only will not necessarily be awarded fulI marks.

 5. You may use an approved scientific calculator (non-programmable and non-graphical), unless $tated
     otherwise.

 6. If necessary, round off answers to TWO decimal places, unless stated otherwise.
'.7. Diagrams are NOT necessarily drawn to scale.

 8. Number the answers correctly according to the numbering system used in this question paper.
 9. Write neatly and legibly.

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Mathematics P2                                            3          Preparation Examination September 2020
                                                    NSC - Grade 12

QUESTTON I

The total number of red cards issued per country to players during a soccer competition are given in
the table below:

      NUMBER OF'                  NUMBER OF         MIDPOINT OF INTERVAL (x)                  f.x
      RED CARDS                   COUNTRIES (fl

             0<x<2                      LI
             2<x<4                      l5
             4<x<6                      5
             6< 16 I   8                5
             8< x< l0                   a
                                        J

             TOTAL

1.1     Calculate the estimated mean of the number of red cards per country.                                     (3)

t.2     Draw an ogive crrrve to represent the above data.                                                        (3)

1.3     Calculate the interquartile range of the number of red cards issued per country in the
        competition.                                                                                             (2)

                                                                                                                 I8I

QUESTION ?

The table below shows a relationship between the monthly rent (x) a person pays for an apartment
and the person's monthly income (y). Both are given in thousands of rands.

YEAR                       2003              2004       2005          2006             2007               2008
Rent (x)                    2                 3          15            \)               5.6                 6
Income (v)                  9                13,5         l5          16,5               t7                20

2.1     Determine the equation of the regression line.                                                           (4)

2.2     Determine the estimated monthly income if the rent per month is R9000.                                   (2)

2.3     Calculate the value of the correlation coefficient.                                                      (2)

2.4     Describe the relationship between the monthly rent and the monthly income.                               (2)

                                                                                                                 l10l

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 Mathematics P2                                        1
                                                                  Preparation Examination September 2020
                                                 NSC - Grade 12

 QUESTTON 3

ln the diagram KLMN is a quadrilateralwith K(4; l0), L(l; t), M(4; 0) and N(S; 2).

                                                 K(a; 10)

3.1     Determine the:

        3.1.1 gradient of LM and MN                                                                   (4)

        3.1.2 length of KM.                                                                           (2)

        3.1.3 value of 0                                                                             (2)

        3.1.4 midpoint of LN                                                                         (2)

3.2     Show that KL     I LM                                                                        (3)

J.J     Prove that KLMN is a cyclic quadrilateral.                                                   (4)
                                                                                                      IrTl

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Mathematics P2                                             5          Preparation Examination September 2020
                                                     NSC - Grade 12

QUESTTON 4

In the sketch below, AB is a diameter with coordinates A(3;2) and B(-5; 4) of circle ABC.
M is the centre of the circle. BC produced meets AT in T. N(2; -2) is a point on the line TA.
C is the y - intercept of the circle.

                     B(-5; a)

                                                                                     (3;2)

                                                                               N(2; -2)

4.r     Determine the co-ordinates of M the centre of the circle                                                (2)

4.2     Write down the equation of the circle in the form (x - p)2 + (y - d' : I                                (3)

4.3     Prove that TA is a tangent to the circle at A.                                                          (s)

4.4     Determine the equations of the lines

        4.4.1 TA and                                                                                            (4)

        4.4.2 BT                                                                                                (6)

4.5     If the coordinates of T are (a; b), calculate the values of a and b.                                    (3)

                                                                                                                I23l

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 Mathematics P2                                             6               Preparation Examination September 2020
                                                      NSC - Grade 12

 QUESTTON s

 5.I     Without using a calculator, evaluate

         Cos 79o cos 3l lo + sin l01o sin 49o                                                                         (4)

 5.2     Given: sin (x + y) : 3 sin (x -y)

         Prove that: tan x :    2tanv                                                                                 (4)

 E
   ^
 J.J     Ulven:
                     cosx cos2x : Slnx
                     sin   2x 2stnx
         5.3.1 Prove that losr - cos2x = sinx                                                                         (4)
                               stn2x 2stnx
         5.3.2 Hence, solve forx where x e[0";360"]:

                  | + 2cos2x : cos 2x       cos.r
                                                                                                                     (6)
                                  2stnx stn2x
                                                                                                                      l18l

QUESTTON 6

In the diagram, the graphs of f (x): a sin bx and, g (x)        : c cos dx are drawn for the interval
 xe[-90'; 360"]

6.1     Determine the values of a, b, c and d.                                                                       (4)

6.2     Write down the period of g.                                                                                  (1)
6.3     Determine the value(s) ofx in the interval xe [-90' ; 360"], for which

        6.3.1 "f (x) < s @)                                                                                          (2)
        6.3.2 f'(x)        g'(") > 0 where S(r) > 0                                                                  (3)
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Mathematics P2                                                   Preparation Examination September 2020
                                              NSC - Gnde 12

                                                                                                          l10l

QUESTTON 7

In the diagram P, Q and R are three points in the same horizontal plane. PR = QR= z,
 QpR = x. SP is perpendicular to PQ. The angle of elevation of S from Q is y.

                 o

7.1     Express the area of APQR in terms of x andm.                                                      (5)

7.2     Showthat PQ:2mcosx                                                                                (4)

7.3     Hence, prove that SP :2m cos xtany                                                                (2)

                                                                                                          111l

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Mathematics P2                                     8          Preparation Examination September 2020
                                             NSC - Grade 12

QUESTTON 8

8.1 In the diagram below A KLM is givon, with P and Q lying on KL and KM respectively
        such that PQ il fU. PM and LQ are drawn.

        Prove that
                     *="Q
                                                                                                       (6)
                     PL QM

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Mathematics P2                                        9           Preparation Examination September 2020
                                                NSC - Grade 12

8.2    In the diagram, SBT, SA and TC are tangents to the circle at B, A and C respectively.
       AB is produced to P and AC is produced to Q such that T lies on the line PQ.
                   AB AC.
       In aAPo.--AP-
                        AQ

       Use the above information to prove:

        8.2.r -A, rr,                                                                                      (4)

        8.2.2 AABC ll/ LTCQ                                                                                (4)

        8.2.3 ABTQ is a cyclic quadrilateral.                                                              (4)

        8.2.4 Prove that TQ is a tangent to circle TBC at T.                                               (5)

                                                                                                           I23l

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 Mathematics P2                                         l0         Preparation Examination September 2020
                                                  NSC - Grade 12

 QUESTION 9

 In the diagtam, M is the centre of the circle through A, B and C. E is on AC. AC bisects frrfeg
 and EB bisects frrmC . fr,: x

         Determine the size of E" in terms ofx.                                                               (4)
  9.1

                                                                                                              (3)
. 9.2    Show BAC = 90" - 2x

  9.3    Prove that AE is a diameter of circle ABE.                                                           (s)

                                                                                                              Ir2l

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Mathematics P2                                         1l            Preparation Examination September 2020
                                                 NSC - Grade 12

QUESTTON 10

l0.l     In the diagram XMN is a straight line and XT is a tangent tothe circle.
         Y is a point on XN so that XY : XT.

Prove   that: :
         10.1.1 YTbisect MtN.                                                                                 (5)

                   XM _ XT                                                                                    (6)
          IO.I.2
                   XT    XN

I0.2 Given that MY:20 mm. YN: 50 mm and XT : kmm;
        " 10.2.1 Express XM in terms of k.                                                                    (3)

         10.2.2 Calculate the length of k.                                                                    (4)

                                                                                                              l18l

                                                                                       TOTAL MARKS: 150

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Mathematics P2                                        t2                   Preparation Examination September 2020
                                                NSC - Grade 12

         -b!
                 2a

    A= P(7+ni)         A= P(l-ni)              A= P(l-i)'                             A= P(l+i)"

    Tn =   e+(n-l)d
                                                                                      d
                                                                           S^=
                                                                            *
    T, = ar'-r                                                                       l-r i -l<r<l
    p-

                                                                 fll=-
                                                                         lt-lt               m=tan9
      !=mx+c                      /-h=m(x-x)                             xz-xl
      (*-o)'+0-b)'=r'
                o            c
                                               o2 =b2 +c2 -2bc.c'osA areaMBC =!ab.snC
     In AAB1:       =-b-=
              sin r4 sin B sin C                                                                    2

     sin(a + F): srna.oos B + cosa.stn B              sin(a - B) = srna.cns B - cns a.stn B

     cos(a + F) = cns a.cns B - sin a. sin B          cos(a - B)= cosa-eos P +sna.sn B

                         sinz a

                         d                            stn2a =2sina.cnsa

                        -1
                                                                          st /
                                                                                 -\
                                                                         _
                                                                           L\x'-x)
                                                                           i=l
                                                                 -2
                                                                                 n

                                                      P(A or B) : P(A) + P(B) - P(A and B)

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