Review Exercise 38 Objective)

8/6/2019 Review Exercise 38 Objective)

1/17

REVIEW EXERCISE 38

Objective Questions1. Mr Tan collected school fees from 30 students. If each student paid RM15, then the

amount of money, RMm, collected from n of the students is given by

A m =2

1n

B m = 15n

C m = 30nD m = 450n

2.

In the diagram, the relationship betweenx andy isA y = x

B y = 5x

C y = 5x

D y = 8x

3. A stone is dropped from a building of height 100 m. In time tseconds, the speed,

v m/s, acquired by the stone is 10 times the time taken. The function that connects thespeed and time is

A v = 10tB v = 100tC v = 1 000tD v = 100 + 10t

4. The radius of a cylindrical oil tank is two times the height of oil in the tank. Which of

the following functions shows that relationship between the volume, Vm3, of oil andthe height,x m, of the oil in the tank

A V= x3

B V= 2x3

C V= 4x3

D V= 8x3

5. Given the functiony = 12 3x. The value of the dependent variable when the valueof the independent variable is 3 is

A 2

B 5

C 9

D 21

Pearson Malaysia Sdn. Bhd 2008 Essential Mathematics PMR 1


2/17

6. The sum, S, of the first n natural numbers is given by S=2

1n (n + 1). The value of

Swhen n = 15 is

A 120

B 180C 200

D 240

7. In the function m = 3 4n n2, the value ofm when n = 2 isA 12

B 11

C 9

D 7

8. His the sum of the digits of a whole numberN. IfN= 4567, thenHis

A 10

B 12C 13

D 22

9. The variablesZand Ware connected by the functionZ= 2W3 7W. IfW= 3, thenthe value ofZis

A 75

B 33

C 39

D 75

10. Which of the following table of values is constructed from the functiony = 5x + 3?

A

B

C

D


x 2 1 0 1y 7 8 3 8

x 2 1 0 1

y 7 8 3 8

x 2 1 0 1

y 7 2 3 8

x 2 1 0 1

y 7 2 3 5


3/17

11.

The functiony = 2x x2 is used to construct the table of values. Find the value of

p + q + r.A 7

B 6

C 5

D 4

12.

The table of values is calculated based on the functiony = 1 4x. The value ofm n

isA 8

B 2

C 6

D 8

13.

The table of values shows the functiony = 6 3x + 2x3.Which of the following values ofy is not correct?

A 5

B 6

C 16

D 41

14.

Based on the table of values, which of the following shows the points that are marked

correctly?

A


x 1 0 1 2 3

y p 0 1 q r

x 2 0 2 4

y 9 1 m n

x 0 1 2 3

y 6 5 16 41

x 0 1 2 3 4

y 1 2 5 10 17


4/17


5/17

16.

The table of values shows the relationship between two variablesx andy. Which ofthe following functions is correct?

A y =x + 5B y = 2x + 3

C y = 3x + 1D y = 4x 1

17. Which of the following shows the correct way for drawing a smooth curve that

passes through the given points?

A

B

C

D


x 2 4 5

y 7 11 13


6/17

Questions 18 - 20 are based on the graph of a function.

18. Whenx = 0.8, the value ofy is

A 3.8

B 4

C 4.5

D 5

19. The sum of the two values ofx wheny = 4 is

A 4.2

B 4C 3

D 3

20. If (3,p) and (1, q) are two points on the graph of the function, then the valueofpq is

A 10

B 12

C 14

D 15

21.

The function representing the graph is

A y =x + 3

B y = 3 x

C y = 3 2

1x

D y = 6 x



7/17

22. Which of the following shows the graph of the functiony = 3x + 3?

A

B

C

D



8/17

23. Which of the following shows the graph ofy =3

1x with the given table of values?

A

B

C

D


x 3 6 9

y 1 2 3


9/17

24.

Which of the following shows the function of the graph?

A y = 1 x2

B y =x2 + 1

C y = 1 x2

D y =x2 1

25.

The table of values shows the functiony = 2x2 1. Which of the following is thegraph of the function?

A

B


x 0 1 2 3 4

y 1 1 7 17 31


10/17

C

D

26.

A ball is thrown upwards from the top of a lighthouse. The height of the lighthouse is

20 m from the sea level. The horizontal distance,x m, of the ball and its height,y m,

from the sea level is represented by the graph. The maximum height, in m, attained

by the ball from the top of the lighthouse isA 21

B 26

C 36

D 46

27.

Based on the graph in the diagram, find the value ofy whenx = 5.

A 4

B 3

C 2

D 3



11/17

28.

Tommy uses the table to draw the straight liney = 4x + 3. He found out that the point

that did not lie on the straight line is

A (1, 7)

B (2, 11)

C (4, 21)

D (6, 27)

29. Which of the following graphs represents the functiony =x + 2?

A

B

C

D


x 1 2 4 6

y 7 11 21 27


12/17

30.

Based on the graph in the diagram, which of the point A, B, C,orD lies on the

straight liney = 2x 1?

31. Which of the following graphs represents the straight liney = 3 x?

A

B

C

D



13/17

32.

The diagram shows three points that are marked on a Cartesian plane. Based on the

coordinates of the three points, the relationship betweenx andy isA y = 3x + 2

B y = 3x 2C y = 3x 2

D y = 3x + 2

33.

The graph in the diagram shows four straight lines. Which of the following straight

lines is the graph of the functiony = 5x 9?

A FHB FI

C FJD FK

34.

Based on the graph in the diagram, one of the values ofx wheny = 3 is

A 7

B 1C 2

D 4

35. Which of the following is the graph of the functiony =2

1x based on the table?


x 2 4 6

y 1 2 3


14/17

A

B

C

D

36. Which of the following is the graph of the functiony = 2x + 6?

A

B



15/17

C

D

37.

Jamal constructed the table of values for the functiony = (x 1)2. The coordinates of

the point that were calculated wrongly are

A (2, 9)

B (0, 1)

C (3, 4)

D (5, 16)

38.

Based on the graph of a function in the diagram, the value ofy whenx = 3 isA 3

B 1

C 3

D 4

39. Which of the following points does not lie on the functiony =x(x 4)?

A (1, 5)

B (1, 3)

C (2, 6)

D (4, 0)


x 2 0 3 5y 9 1 4 16


16/17

40.

The graph in the diagram shows a straight line. The equation of the graph is

A y = 2x 1

B y = 2x 1

C y = 2

1x 1

D y =2

1x 1

41.

The diagram shows the graph of the functiony = 2 (x2 2) that is drawn by Aziz.Which of the point A, B, C, orD has been marked wrongly?

42. Which of the following graphs representsy = x2 2?A

B



17/17

C

D


Review Exercise 38 Objective)

Documents

Transcript of Review Exercise 38 Objective)