Grade 8 Practice Test # 1
No calculator allowed
Name:______
1. What is the value of the angle indicated below?
A 45 B 55 C 100 D 135
2. What is the solution to the equation 3(x + 4) = 2x -7?
A -3 B -5 C -11 D -19
3. The simplified form of x5 ∙ x9 is equal to
x3
A x 3 B x 11 C x17 D x-1
4. The speed of light is approximately 3 x 108 m/s. How far does light travel on 60 seconds?
A 5.0 x 106 B 5.0 x 107 C 1.8 x 109 D 1.8 x 1010
5. What is the equation of the straight line that passes through the points (2, 1) and (-2, -7)?
A y = 2x + 3 B y = 2x - 3 C y = 3x + 2 D y = 3x - 2
6. Brian graphed a system of linear equations.
What is the solution to the system of equations?
A (-2, 0) B (1, 3) C (0, 4) D (3, 1)
7. The population of the United States is 3 x 108 and the population of the world is 6 x 109. How do these populations compare in size?
A The Unites States population is twice the population of the world population
B The Unites States population is half the population of the world population
C The Unites States population is 20 times the population of the world
D The Unites States population is of the population of the world
8. Write a rule to describe the translation of to .
A. (x, y) to (x-3, y+4) B. (x, y) to (x-4, y+3) C. (x, y) to (x+3, y-4) D.(x, y) to (x+4, y-3)
9. Which graph represents a function?
A B C D
10. What is the solution to the equation below?
⅔(3x – 6) = 8
A 2 B 2⅔ C 6 D 6⅓
11. The table of a function is given below
x / 1 / 3 / 5 / 7y / -1 / 5 / 11 / 17
Which relationship represents a function with a greater rate of change than this function?
A y = 6x -7 B C D y = 6 - 2x
12. The areas of two national parks are 8 x 103 square miles and 4 x 104 square miles.
How does the area of the larger park compare to the area of the smaller park?
A It is 2 times bigger B It is 5 times bigger C It is 20 times bigger D It is 50 times bigger
13. Adam created two functions. The graph for Function A is given below. The table below represents Function B.
FUNCTION A FUNCTION B
x / y-3 / -9
-1 / -5
1 / -1
3 / 3
In comparing the rates of change, which statement about Function A and Function B is true?
A Function A and Function B have the same rate of change.
B Function A has a greater rate of change than Function B has.
C Function A and Function B both have negative rates of change.
D Function A has a negative rate of change and Function B has a positive rate of change.
14. The body of a 150 lb person contains 2.3 x 10-4 lb of copper. How much copper is contained in the bodies of 1200 such people?
A 3.45 x 10-2 B 2.76 x 10-1 C 2.76 x 10-2 D 4.14 x 101
15. Evaluate (3.2 x 103)(5.5 x 104)
A 1.76 x 107 B 1.76 x 108 C 1.76 x 1012 D 1.76 x 1013
16. Which of the following is a description of the rule (x, y) (x – 2, y – 7)
A. translation 2 units to the right and 7 units up
B. translation 2 units to the right and 7 units down
C. translation 2 units to the left and 7 units up
D. translation 2 units to left and 7 units down
17. Rectangle ABCD has vertices A(-3, 1), B(-3, 2), C(-2, 1), and D(-2, 2). Graph ABCD and its translation 2 units to the right and4 units down.
A. C.
B. D.
18. The maximum height and speed of various roller coasters in North America are shown in the table below
Which graph represents a correct scatter plot of the data?
A B C D
19. Which expression is not equivalent to 42
45
A 1 B 4-3 C 1 D 1
42 64 43
20. Which of the following is not a function?
A (1,5) (2,6) (3,6) (4,7) B (4,7) (2,1) (-3,6) (3,4)
C (-1,6) (1,3) (2,5) (1,7) D (-1,2) (0,5) (5,0) (2,-1)
21. An angstrom is 1.0 x 10-10 meters. A DNA molecule is 2.5 x 101 angstrom wide. What is the width of a water molecule in meters?
A 2.5 x 10-9m B 2.5 x 1011 m C 2.5 x 10-11 m D 2.5 x 109 inch
22. If ABCD is congruent to PMNO then:
A. BC AB B. BC NO C. BC MP D. BC MN
23. An ELA teacher collected data on the number of hours her students studied for the Regents test and their scores on the test. The data is plotted:
What is the pattern of association (correlation) shown by the graph?
A no association B nonlinear association
C a positive association or trend D a negative association or trend
24. If figure ABCD is translated so that the image of A is A’ at (–2, 2), then what will the coordinates of the image of C be after the translation (that is, C’)?
A. (–2, 0) B. (1, –2) C. (–1, –3) D. (1, –3)