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1. |
Use a graphing calculator to graph y = 8x – 2x2. Estimate the highest point on the graph. |
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A. |
(8, 2) |
B. |
(2, 8) |
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C. |
(7, 3) |
D. |
(3, 7) |
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Hint |
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2. |
Choose the correct graph of y = 12x – 3x |
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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. |
How could you use the graph of h = 20t – 6t2 to estimate the solution(s) of 20t – 6t2 = 7, where h stands for height and t stands for time? |
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A. |
Draw a horizontal line at h = 7 and find where it intersects the curve. |
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B. |
Draw a vertical line at t = 20 and find where it intersects the curve. |
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C. |
Draw a vertical line at t = 7 and find where it intersects the curve. |
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D. |
Draw a horizontal line at h = 20 and find where it intersects the curve. |
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Hint |
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4. |
A ball is launched straight up from ground level modeling the equation h = 52t – 10t2, where h stands for height in meters and t stands for time. What is the approximate value of t when the ball hits the ground? |
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A. |
2.6 seconds |
B. |
6.0 seconds |
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C. |
0 seconds |
D. |
5.2 seconds |
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Hint |
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5. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
x(x – 7) = 36 |
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A. |
x = 3.26, x = 6.31 |
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B. |
x = –15.96, x = –1.15 |
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C. |
x = 11.00, x = –2.01 |
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D. |
x = 10.45, x = –3.45 |
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Hint |
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