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1. |
Determine the slope of the line graphed below. |
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A. |
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B. |
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C. |
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D. |
0 |
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Hint |
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2. |
Find  |
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A. |
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B. |
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C. |
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D. |
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Hint |
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3. |
What is the equation of the graph shown? |
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A. |
f(x) = -2x2 + 2x + 1 |
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B. |
f(x) = -2x2 + 2x - 1 |
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C. |
f(x) = 2x2 + 2x + 1 |
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D. |
f(x) = 2x2 - 2x + 1 |
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Hint |
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4. |
Simplify  . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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5. |
Which characteristic describes a graph that is linear and has direct variation. |
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A. |
Variables x and y are not proportional. |
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B. |
The equation has the form y = mx. |
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C. |
The equation has the form y = mx + b. |
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D. |
The graph does not pass through (0, 0). |
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Hint |
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6. |
Find the equation that is nonlinear. |
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A. |
y = 8 – x |
B. |
y = 14 + 6x |
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C. |
y = 4y2 |
D. |
y = –3x – 1 |
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Hint |
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7. |
Michael just got a job mowing his elderly neighbor's lawn paying him $10 each week. Draw a graph showing the amount he receives is increasing very rapidly. Suppose you graph the time in weeks on the horizontal axis and the amount Michael receives on the vertical axis. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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8. |
What is the equation of a line that has a slope of –1 and passes through (–2, 0)? |
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A. |
y = –x + 2 |
B. |
y = –2x + 1 |
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C. |
y = –x – 2 |
D. |
y = –x – 1 |
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Hint |
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9. |
What is the equation of a line that has a slope of 3 and passes through (–4, –3)? |
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A. |
y = 3x – 9 |
B. |
y = 3x – 3 |
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C. |
y = 3x + 3 |
D. |
y = 3x + 9 |
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Hint |
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10. |
Find the graph of y = x2. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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11. |
What is the lowest point on the graph of y = x2 + 2? |
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A. |
(0, 2) |
B. |
(2, 0) |
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C. |
(0, –2) |
D. |
(0, 0) |
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Hint |
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12. |
Two friends are playing catch with a baseball. The ball's flight can be modeled by the equation
y = 1 + 0.6x – 0.08x2, in meters. What is the height of the ball at its highest point? |
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A. |
3.78 m |
B. |
2.13 m |
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C. |
1 m |
D. |
18.8 m |
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Hint |
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13. |
Solve for y in terms of x.xy = 100 |
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A. |
x =  |
B. |
y =  |
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C. |
y = 100x |
D. |
y =  |
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Hint |
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14. |
In the relationship  , why is y inversely proportional to x? |
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A. |
8 is divided into y |
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B. |
8 is divided into x |
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C. |
the relationship is undefined at x = 0 |
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D. |
the product of xy is a constant, 8 |
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Hint |
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15. |
Consider the equation  . What happens to the value of y when x is divided by 4? |
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A. |
y is subtracted from 4 |
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B. |
y is added to 4 |
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C. |
y is divided by 4 |
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D. |
y is multiplied by 4 |
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Hint |
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16. |
Which differences are constant in a cubic equation? |
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A. |
fourth |
B. |
third |
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C. |
second |
D. |
first |
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Hint |
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17. |
How many counterexamples are needed to prove a conjecture wrong? |
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A. |
1 |
B. |
4 |
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C. |
3 |
D. |
2 |
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Hint |
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18. |
Suppose your parents buy a new car for $21,000. What will the value of the car be in 5 years if the car depreciates by 10% each year.? |
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A. |
$12,400 |
B. |
$15,309 |
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C. |
$11,160 |
D. |
$10,044 |
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Hint |
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19. |
Use the following table to find the amount of medicine remaining in the bloodstream after n hours. |
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A. |
0.85n |
B. |
0.85 × 500n |
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C. |
500 × 0.85n |
D. |
425 × 0.85n |
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Hint |
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20. |
Which equation represents exponential decay? |
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A. |
y = 63 × 0.4x |
B. |
y = 63 × 4.4x |
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C. |
y = 63 × 4x |
D. |
y =  · 63x |
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Hint |
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