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1. |
Use the quadratic formula to solve x2 + 2x - 8 = 0. |
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A. |
-4 |
B. |
-4, 2 |
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C. |
-2 |
D. |
-4, -2 |
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Hint |
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2. |
Use the quadratic formula to solve 2x2 + 7x + 4 = 0. Approximate the solutions to the nearest hundredth. |
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A. |
-2.78, -0.72 |
B. |
-5.56, -1.44 |
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C. |
1.28, 3.66 |
D. |
-3.35, -0.15 |
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Hint |
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3. |
Solve the equation.x2 – 2x – 3 = 0 |
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A. |
x = 3 and x = –1 |
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B. |
x = –5 and x = 0 |
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C. |
x = 5 and x = 0 |
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D. |
x = 2 and x = –1 |
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Hint |
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4. |
Prospect High School decided to add a new parking lot for its increased student population. They just bought 15,000 ft2 of land next to the school. The only requirement of the new parking lot is that the length should be 100 feet more than the width. What is the quadratic equation representing the school's requirements? |
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A. |
x2 – 100x + 15,000 = 0 |
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B. |
x2 + 100x + 15,000 = 0 |
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C. |
x2 + 100x – 15,000 = 0 |
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D. |
x2 – 100x – 15,000 = 0 |
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Hint |
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5. |
Find the quadratic equation with 1 solution. |
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A. |
4x2 + 4x – 35= 0 |
B. |
x2 + 6x + 9 = 0 |
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C. |
x2 – 10x + 21= 0 |
D. |
x2 – 2x + 2= 0 |
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Hint |
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