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1. |
Find two real numbers whose sum is 12 and whose product is 32. |
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A. |
8 and 4 |
B. |
7 and 5 |
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C. |
no solution |
D. |
2.25 and 14.25 |
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Hint |
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2. |
Solve by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. |
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A. |
1, 2 |
B. |
between 0 and 1, and 1 and 2 |
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C. |
between 1 and 0, and 1 and 2 |
D. |
between 0 and 1, and 2 and 3 |
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Hint |
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3. |
Solve by graphing. |
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A. |
x = 2 |
B. |
x = 2 |
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C. |
x = 0 |
D. |
no real roots |
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Hint |
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4. |
A quadratic function has two real roots. How many times does the graph cross the x-axis? |
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A. |
0 |
B. |
2 |
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C. |
cannot be determined from given information. |
D. |
1 |
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Hint |
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5. |
Solve -x2 + 3x + 5 = 0 by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. |
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A. |
between 2 and -1, and between 4 and 5 |
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B. |
between 1 and 0, and between 4 and 5 |
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C. |
between 1 and 0, and between 3 and 4 |
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D. |
between 2 and1, and between 3 and 4 |
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Hint |
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