pmr trial 2010 math2 q&a (perak)

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    SULIT

    JABATAN PELAJARAN PERAK

    PEPERIKSAAN PERCUBAAN PMR TAHUN 2010

    MATHEMATICS 50September

    2010

    MATHEMATICS

    PERATURAN PEMARKAHAN

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    MARKING SCHEME

    MATHEMATICS PAPER 2

    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    1

    37

    6

    15

    37 or equivalent

    5

    2

    K1

    N1 2

    2(a)

    27

    8

    (b)

    3

    63

    1

    or 23

    8

    K1

    K1

    N1 3

    3

    M

    P

    Q

    Image correct

    Note:

    1. Award N1:Any two sides drawn correctly or

    Correct image drawn using dotted lines or

    N2

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    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    Correct image drawn by sketching

    2. Allow gaps or extension lines4

    1 of the square grid.

    2

    4 (a) Clockwise //Arah jam

    (b) ( 1, 2) or marked on the diagram

    P1

    P1 2

    5

    C H

    GF

    ED

    K

    J

    C H

    GF

    ED

    K

    J

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    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    Quadrilateral JKLMNO drawn correctlyNote:

    1. Award N1Any one corresponding side drawn correctly or

    Correct image drawn using dotted line or

    Correct image drawn by sketching

    N2

    2

    6 4x = 3y + 5

    4

    53 y

    x or4

    5

    4

    3 yx

    P1

    N1 2

    7 (a) y = 9

    (b) 2m = 14

    m = 7

    N1

    K1

    N1 3

    8 6(x2 4 )

    6(x 2)(x + 2)

    P1

    N1 2

    9 (a) 3 4y

    (b) 7x + 2y 4x + 4y

    3x + 6y

    N1

    K1

    N1 3

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    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    10

    3 corresponding sides correctly drawn

    Complete diagram with correct scale

    Note:

    1. 2 corresponding sides correct award K1

    K2

    N1 3

    11A

    BC

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    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    (a) (i) locus of X correctly drawn(ii) locus of Y correctly drawn

    (b) Intersection correctly marked

    K1K1

    N1 3

    12 3m (2 3m) or equivalent

    mn

    m

    12

    26 or equivalent

    mn

    m

    6

    13

    K1

    K1

    N1 3

    13 x < 3

    2x

    Note: 32 x award K2

    2, 1, 0, 1, 2

    K1

    K1

    N1 3

    14 (a) 70o

    (b)4

    8

    3

    PS

    PS = 6

    Note : 6 seen on the diagram award K2

    QS = 3

    N1

    K1

    K1

    N1 4

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    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    15 (a) History = 95o

    Geography = 80o

    (b) Any two sector drawn correctly

    Pie chart drawn completely and labelled correctly

    Note: No label/ wrongly label N0

    Accuracy 1

    N1

    N1

    K2

    N1 5

    16 (a) Correct and uniform scale

    (b) All 7 points plotted correctly

    (c) Smooth curve passing through 7 plotted points

    Note:

    1. 5 or 6 points plotted correctly - K1N0

    2. For other scale used, deduct 1 mark from K2N1

    K1

    K2

    N1 4

    17 (a) 58o 1o

    (b) Construct 60o at P correctly

    Construct 90o at Q correctly

    Construct line segment QR = 5 cm

    Construct line segment PS = line PQ

    Diagram drawn complete and correct

    N1

    K1

    K1

    K1

    K1

    N1 6

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    No Solution and Mark Scheme Sub

    Mark

    Full

    Mark

    18 (a) k3

    (b) p2q6 or p2 2

    or q6 4

    q2

    N1

    K1

    N1 3

    19

    2

    1

    1 33 or 21

    34 or 21

    2 32

    2

    1

    1 363 or 63 or 121

    2

    3

    23

    or 12 23 or 9 2

    18

    K1

    K1

    N1 3

    20 QS = 6 or PQ = 12 or seen on the diagram

    13

    P1

    N1 2

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    - 1- 2 10 2 3 4

    x

    10

    8

    6

    4

    2

    -2