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1. |
Is the relation whose graph is shown below a function? |
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A. |
Yes; Each element of the range is unique. |
B. |
Yes; It passes the vertical line test. |
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C. |
No; It does not pass the vertical line test. |
D. |
No; The ordered pairs on not on one line. |
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Hint |
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2. |
Graph the equation  |
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A. |
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B. |
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D. |
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Hint |
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3. |
Draw the graph of x + 3y = 12. |
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A. |
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B. |
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Hint |
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4. |
An equation written in the form y = mx + b is in |
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A. |
slope-intercept form |
B. |
both intercept form |
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C. |
x-intercept form |
D. |
y-intercept form |
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Hint |
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5. |
Which of the following is (are) true about functions? |
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A. |
All of these |
B. |
Functions pass the vertical line test. |
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C. |
In a function, each member of the domain is paired with one and only one member of the range. |
D. |
Functions are relations. |
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Hint |
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6. |
Find the x- intercept for the graph of 3x + 5y = 15. |
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A. |
5 |
B. |
3 |
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C. |
-5 |
D. |
-3 |
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Hint |
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7. |
Find the x- intercept of 4x – 6y = 24. |
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A. |
6 |
B. |
-6 |
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C. |
-4 |
D. |
4 |
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Hint |
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8. |
Find the slope of a hill that rises 60 meters for every horizontal change of 95 meters. |
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B. |
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Hint |
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9. |
Find the slope of the line that passes through (-10, 5) and (2, 5). |
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A. |
-12 |
B. |
0 |
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C. |
undefined |
D. |
-8 |
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Hint |
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10. |
Find the rate of change between two points on a graph that are located at (0.9, 2) and (9.3, 12). |
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A. |
1.19 |
B. |
0.84 |
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C. |
-0.84 |
D. |
-1.19 |
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Hint |
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11. |
At a gas station, 15 gallons of gas has a price of $17.55 and 18 gallons of gas has a price of $21.06. Write a direct variation equation that relates the cost y of any number of gallons of gas x. |
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A. |
y = 1.15x |
B. |
y = 1.2x |
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C. |
y = 1.07x |
D. |
y = 1.17x |
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Hint |
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12. |
State the slope and y- intercept of the graph of  |
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B. |
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D. |
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Hint |
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13. |
Write an equation for the line that passes through (-3, 23) and (3, -7). |
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A. |
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B. |
y = -5x + 8 |
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C. |
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D. |
y = 5x – 23 |
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Hint |
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14. |
Use the table of values to write an equation in slope-intercept form. |
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A. |
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B. |
y = -3x – 31 |
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C. |
y = 3x + 11 |
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Hint |
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15. |
Write an equation in slope-intercept form for the best-fit line of a scatter plot which contains the points (4, 60) and (9, 135). |
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A. |
y = 15x |
B. |
y = -15x |
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D. |
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Hint |
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16. |
A scatter plot contains the points (2, 8) and (19, 59). Write an equation in slope-intercept form for the best-fit line of the scatter plot. |
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A. |
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B. |
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C. |
y = -3x + 15 |
D. |
y = 3x + 2 |
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Hint |
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17. |
Solve the system of equations given by y = -2x and y = x + 3. |
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A. |
(1, -2) |
B. |
(-3, -6) |
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C. |
(-1, 2) |
D. |
(3, 6) |
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Hint |
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18. |
Solve the system of equations given byy = 2x – 7 and y = 5. |
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A. |
(-1, 5) |
B. |
(6, 5) |
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C. |
(5, 3) |
D. |
(3, 5) |
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Hint |
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19. |
Match the graph shown with the correct inequality. |
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A. |
y < 3x + 2 |
B. |
y < -3x + 2 |
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C. |
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D. |
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Hint |
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20. |
Match the graph shown with the correct inequality. |
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A. |
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B. |
y > 3x + 6 |
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C. |
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D. |
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Hint |
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