Pre-Algebra II Chapter 8 Practice Test - Comcast.net
Pre-Algebra II Chapter 8 Practice Test - Comcast.net
Pre-Algebra II Chapter 8 Practice Test - Comcast.net
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<strong>Pre</strong>-<strong>Algebra</strong> <strong>II</strong> <strong>Chapter</strong> 8 <strong>Practice</strong> <strong>Test</strong><br />
Calculate the slope using the two points and the formula.<br />
1. (1, 2) and (2, 7)<br />
2. (4, -9) and (-6, -12)<br />
3. (1, 3) and (-1, -2)<br />
Identify the slope and y-intercept from the given equations.<br />
4. y = 5x + 2<br />
5. y = 1 x - 4<br />
3<br />
6. y = x + 6<br />
Find the solutions of each equation for: x = -2, -1, and 1.<br />
Write as ordered pairs! (x, y)<br />
7. y = x + 5<br />
8. y = 1 x + 3<br />
2<br />
9. y = 3x - 2<br />
Is the ordered pair a solution to the equation? (yes or no)<br />
10. 4x – 3y = 6 (0, -2)<br />
11. 4x – 3y = 6 (2, 3)<br />
12. 4x – 3y = 6 (-3, -2)<br />
Is each relation a function? (yes or no)<br />
13. (-2, -12) (2, 0) (-3, 4) (3, 5)<br />
14. (1, 1) (-2, 1) (-2, 2) (4, 1)<br />
15. (1, 4) (1, 5) (1, -1) (1, -2)
Graph the following equations on your answer sheet.<br />
16. y = 2x - 3<br />
17. y = -1 x + 2<br />
4<br />
18. y = -3x - 3<br />
Is there a positive, a negative, or no correlation in the scatter plot?<br />
19. ..<br />
.<br />
.<br />
. .<br />
.<br />
. .<br />
Would you expect a positive, negative, or no correlation between the two sets of<br />
data?<br />
20. students’ test scores and their homework grade
Answers<br />
1. 5<br />
2. 3/10<br />
3. 5/2<br />
4. m = 5; b = 2<br />
5. m = 1/3; b = -4<br />
6. m = 1; b = 6<br />
7. (-2, 3) (-1, 4) (1, 6)<br />
8. (-2, 2) (-1, 5/2) (1, 7/2)<br />
9. (-2, -8) (-1, -5) (1, 1)<br />
10. Yes<br />
11. No<br />
12. No<br />
13. Yes<br />
14. No<br />
15. No<br />
16.<br />
<strong>Pre</strong>-<strong>Algebra</strong> <strong>II</strong> <strong>Chapter</strong> 8 <strong>Practice</strong> <strong>Test</strong> Answer Key<br />
y<br />
x<br />
17.<br />
18.<br />
19. Positive<br />
20. Positive<br />
y<br />
y<br />
x<br />
x