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1. |
Determine the slope of the line that passes through (2, 2) and (5, 8). |
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A. |
2 |
B. |
 |
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C. |
-2 |
D. |
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Hint |
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2. |
Use the scatter plot to predict the mileage of an engine with 250 horsepower. |
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A. |
20 |
B. |
10 |
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C. |
12 |
D. |
25 |
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Hint |
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3. |
The graph of y = -4x2 - 1 is _____. |
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A. |
None of these is correct. |
B. |
a parabola |
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C. |
a straight line |
D. |
a circle |
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Hint |
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4. |
Find the equation that has direct variation. |
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A. |
y = 5x + 1.3 |
B. |
y = 0.8x + 9 |
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C. |
y = 4x |
D. |
y = –3x – 1 |
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Hint |
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5. |
Find the equation that has direct variation. |
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A. |
y = –3x – 1 |
B. |
y = 5x + 1.3 |
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C. |
y = 0.8x + 9 |
D. |
y = 4x |
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Hint |
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6. |
Find the situation that is linear but does not have direct variation. |
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A. |
At the beginning of the summer, Dina had $200 in the bank. She withdrew $30 to buy a new pair of shorts. |
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B. |
At the beginning of the summer, Dina had $0 in the bank. She started a job and deposited $10 per week. |
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C. |
At the beginning of the summer, Dina had $200 in the bank. She started a job and deposited $10 per week. |
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D. |
At the beginning of the summer, Dina had $0 in the bank. She earned $50 mowing lawns the previous week and deposited the money in the bank. |
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Hint |
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7. |
Which line is parallel to the line listed below?
 |
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A. |
y = 2x - 5 |
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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. |
Which three points are collinear? |
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A. |
(–1, 1), (2, 3), (5, 2) |
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B. |
(4, –3), (2, –2), (–4, 1) |
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C. |
(–5, –3), (–2, 3), (2, –4) |
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D. |
(3, 1), (4, 0), (–1, 2) |
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Hint |
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9. |
Find the graph of y = x2 + 1. |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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10. |
Which way does the graph of y = –2x2 open? |
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A. |
left |
B. |
right |
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C. |
up |
D. |
down |
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Hint |
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11. |
Which table shows a quadratic relationship? |
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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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12. |
How many diagonals does a 25-sided polygon have? |
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A. |
550 |
B. |
300 |
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C. |
25 |
D. |
275 |
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Hint |
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13. |
Which equation is in the same family as y = x2? |
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A. |
y = 2x – 3 |
B. |
y = x2 – 3 |
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C. |
y = x3 – 3 |
D. |
y = 2x2 – 3 |
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Hint |
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14. |
Find a quadratic equation for the table. |
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A. |
y = 5x2 – 1 |
B. |
y = x2 – 5 |
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C. |
y = 5x2 + 1 |
D. |
y = 5x2 – 2 |
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Hint |
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15. |
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. |
1 m |
B. |
2.13 m |
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C. |
18.8 m |
D. |
3.78 m |
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Hint |
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16. |
Find the cubic equation. |
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A. |
y = 5x3 + 2x |
B. |
y = x2 + 5 |
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C. |
y = 3x |
D. |
y = x(x3 + 1) |
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Hint |
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17. |
Consider the equation xy = 3. What happens to the value of y when x doubles? |
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A. |
y halves |
B. |
y doubles |
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C. |
y quarters |
D. |
y triples |
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Hint |
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18. |
Find the equation of the following graph. |
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A. |
y = x2 |
B. |
y = x3 |
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C. |
y =  |
D. |
y =  |
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Hint |
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19. |
How does b affect graphs of equations in the form of  ? |
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A. |
positive values of b move the graph to the left, negative values move it to the right |
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B. |
b affects the length of the graph |
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C. |
negative values of b move the graph to the left, positive values move it to the right |
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D. |
b affects the width of the graph |
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Hint |
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20. |
What is the relationship between constant second differences and the coefficient of the equation? |
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A. |
the second difference is opposite the coefficient |
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B. |
the second difference is the same as the coefficient |
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C. |
the second difference is –2 times the coefficient |
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D. |
the second difference is 2 times the coefficient |
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Hint |
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