Math Selangor K2 Skema Jawapan Set A

MATEMATIK KERTAS 2 1449/2

PERCUBAAN SPM 2017

Marking Scheme / Skema markah Marks

Submarks Total Marks 1 (a)

Draw the straight dotted line 2x

−

y = 0

Region shaded correctly

(b) No

Bilangan subset bagi set A ialah = 2

4

Submarks Total Marks

1

or equivalent

180

Axes are drawn in the correct direction, uniform scale for 0≤x ≤8 and 0≤V≤450.

7 points and 2 points* plotted accurately

Smooth and continuous curve without straight line(s) and passes through all the 9 correct points 0≤x ≤8 and 0≤V≤450. Mialah pembesaran dengan factor skala 2 pada O (3,3)

14

Umur (tahun)

Upper boundrySempadan

atas

FrequencyKek

erapan

Cummulative Frequency

Kekerapan longgokan

20 – 24 24.5 0 0

All points plotted accurately. Smooth and continuous curve.

1 mark

2 marks 1 mark

(d) 48

2 marks

15 (a)

Correct shape rectangles EFGH and BCHG. All lines are solid.

BC>BF >FG =GB

Submarks Total Marks

15 (b)

Correct shape rectangle ARLK and triangle NPR.

NP >NR >RP=AR>KA.

Measurements accurate up to ± 0.2 cm (one way) and all right angles = 90o± 1o

1 mark

1 mark

2 marks

12

15 (b)

Correct shape rectangles LMPR, MICP and NHCP. All solid lines.

M –I is joined by a dashed line.

RC >HC>HI = MI >LM >LR.

Measurements accurate up to ± 0.2 cm (one way) and all right angles = 90o± 1o

1 mark

1 mark

1 mark

2 marks

P

N

3 cm

A

L

4 cm

2 cm

K

3 cm

3 cm

R

M

C

I

H

N

4 cm

4 cm

R

L

2 cm

16 (a) 144° E / T

Note: Award 1 mark for 144° or �° E / T is seen

(b) (70 °S, 144° E )

Award 2 marksfor(

θ

°S, 144° E ) Award 1 marksfor(

θ

°N, 144° E )

(c) (180°– 70° – 70°) × 60

2400 nautical miles

(d) 144°× 60 × cos 70°

(70° + 70°) × 60

50 70 kos 60

144× × 

or

550 60 ) 70 70

( + ×

50 70 kos 60

144× × 

+

550 60 ) 70 70

( + ×

21.18

2 marks

3 marks

1 mark

1 mark

1 mark

1 mark

1 mark

1 mark

1 mark

Graph for Question 12

Graf untukSoalan 12

1

2 3

4

5

6

7 8

V

O 50 100 150 200 250 300 350 400 450

Graph for Question 14

Graf untukSoalan 14

20

40

60

80

100

120

140

160

O

24.5

29.5

34.5

39.5

44.5

39.5

54.5

Ages (Years)