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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. |
(7, 3) |
B. |
(8, 2) |
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C. |
(3, 7) |
D. |
(2, 8) |
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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. |
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 = 11.00, x = –2.01 |
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C. |
x = –15.96, x = –1.15 |
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D. |
x = 10.45, x = –3.45 |
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Hint |
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4. |
Use you calculator's Table feature to approximate the solutions to the nearest hundredth.
4x(x + 2) = 12 |
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A. |
x = 2, x = –2 |
B. |
x = 0, x = –4 |
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C. |
x = 1, x = –3 |
D. |
x = –1, x = –4 |
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Hint |
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5. |
Toby needs to create a rectangular pen for his dog. He decides that the area of the pen will be 100 square feet with its length 2 feet longer than its width. As you find the width of the pen, which solution can be thrown away since the width cannot be negative? |
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A. |
–12.32 |
B. |
–9.05 |
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C. |
–11.05 |
D. |
–8.32 |
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Hint |
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