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1. |
If a rocket is fired from the ground with an initial velocity of 75 meters per second, then the height of the rocket after t seconds is h = 75t - 4.9t2. Find the height of the rocket after 3 seconds. |
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A. |
180.9 meters |
B. |
221.6 meters |
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C. |
130.4 meters |
D. |
252.5 meters |
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Hint |
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2. |
After a baseball is hit, the expression -16x2 + 59x can be used to determine the height of the ball after x seconds if it is propelled upward at 59 feet per second. Find the height of the ball after 3 seconds by evaluating the expression for x = 3. |
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A. |
54 feet |
B. |
43 feet |
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C. |
0 feet |
D. |
33 feet |
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Hint |
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3. |
Which coordinates would complete the function table for y = 2x2 – 1? |
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A. |
(-2, 7), (-1, 1), (0, -1), (1, 1), (2, 7) |
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B. |
(-2, 7), (-1, 0), (0, -1), (1, 0), (2, 7) |
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C. |
(-2, 9), (-1, -5), (0, -1), (1, -5), (2, 9) |
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D. |
(-2, 9), (-1, 1), (0, -1), (1, 1), (2, 9) |
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Hint |
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4. |
Find the graph of y = -0.5x2. |
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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. |
Find the graph of y = -5x2 + 3. |
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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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