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1. |
Solve the equation w2 - 4w = 12 by graphing. |
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A. |
6 |
B. |
1, 4 |
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C. |
0, -3 |
D. |
-2, 6 |
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Hint |
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2. |
Solve y2 + 8y + 16 = 0 by factoring. |
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A. |
4 |
B. |
4, 8 |
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C. |
-4, 4 |
D. |
-4 |
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Hint |
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3. |
Solve m2 - 2m = 15 by factoring. |
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A. |
-5, 3 |
B. |
3 |
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C. |
5 |
D. |
-3, 5 |
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Hint |
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4. |
Solve x2 - 6x + 25 = 0. |
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A. |
3 ± 4i |
B. |
 |
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C. |
6 ± 8i |
D. |
-3 ± 4i |
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Hint |
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5. |
Solve 2x2 - 4x + 3 = 0. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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6. |
Which function has a graph that opens upward? |
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A. |
f(x) = -5x2 -6x -3 |
B. |
f(x) = -x2 + 4x + 7 |
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C. |
f(x) = 2x2 - 5x - 2 |
D. |
f(x) = -x2 + 3x -12 |
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Hint |
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7. |
Find the vertex of the graph of the function f(x) = x2 - 6x + 5. |
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A. |
(-3, 4) |
B. |
(3, -4) |
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C. |
(3, 4) |
D. |
(-6, 5) |
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Hint |
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8. |
Determine whether f(x) = –x2 – 3x + 4 has a maximum or a minimum. |
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A. |
cannot be determined from given information |
B. |
both |
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C. |
maximum |
D. |
minimum |
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Hint |
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9. |
Which of the following graphs best represents the function y = –x2 + 7x + 8? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Find two real numbers whose sum is 12 and whose product is 32. |
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A. |
2.25 and –14.25 |
B. |
no solution |
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C. |
8 and 4 |
D. |
7 and 5 |
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Hint |
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11. |
Solve x2 + 8x + 16 = 36 by using the Square Root Property. |
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A. |
-4 |
B. |
2 |
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C. |
-2 and –14 |
D. |
2 and –10 |
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Hint |
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12. |
Solve 2x2 - 7x + 5 = 0 by completing the square. |
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A. |
4, 10 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
Solve by graphing. |
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A. |
{x| –1.12 < x < 0} |
B. |
{x| 0 < x < 3.12} |
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C. |
{x| –1.12 < x < 3.12} |
D. |
{x| 0 < x < 3} |
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Hint |
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14. |
Solve by graphing. |
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A. |
{x| –1.19 < x < 0} |
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B. |
{x| 4.19< x < –1.19} |
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C. |
{x| –1.19 < x < 4.19} |
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D. |
{x| 0 < x < 4.19} |
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Hint |
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