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1. |
Which is the quadratic term in the function f(x) = 3x2 + 6x - 4? |
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A. |
3x2 |
B. |
3x2 + 6x - 4 |
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C. |
x2 |
D. |
3 |
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Hint |
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2. |
Find the vertex of the graph of f(x) = x2 + 4x - 5. |
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A. |
(-2, 9) |
B. |
(2, 7) |
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C. |
(0, -5) |
D. |
(-2, -9) |
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Hint |
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3. |
Solve m2 - 2m = 15 by factoring. |
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A. |
-3, 5 |
B. |
5 |
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C. |
3 |
D. |
-5, 3 |
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Hint |
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4. |
Solve 2p2 - 3p -2 = 0 by factoring. |
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A. |
1, 2 |
B. |
, 2 |
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C. |
- , 2 |
D. |
-2,  |
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Hint |
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5. |
Solve x2 - 6x + 10 = 0 by completing the square. |
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A. |
2, 4 |
B. |
1 ± i |
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C. |
-3 ± i |
D. |
3 ± i |
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Hint |
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6. |
Find the axis of symmetry of the graph of f(x) = 4x2 -4x + 4. |
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A. |
x =  |
B. |
x = 2 |
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C. |
y = 3 |
D. |
x = 4 |
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Hint |
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7. |
Solve 9t2 - 15t + 4 0. |
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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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8. |
Solve by graphing. |
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A. |
no real roots |
B. |
x = 2 |
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C. |
x = 2 |
D. |
x = 0 |
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Hint |
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9. |
A quadratic function has two real roots. How many times does the graph cross the x-axis? |
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A. |
cannot be determined from given information. |
B. |
2 |
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C. |
1 |
D. |
0 |
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Hint |
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10. |
Solve x2 - 2x + 1 = 18 by using the Square Root Property. |
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A. |
5 and 2 |
B. |
-5 and 2 |
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C. |
and |
D. |
and  |
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Hint |
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11. |
Find the value for the discriminant for the following equation: . Then describe the number and type of roots. |
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A. |
The discriminant is 100, which is not a perfect square; therefore, there are two irrational roots |
B. |
The discriminant is 100, which is a perfect square; therefore, there are two rational roots |
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C. |
The discriminant is 96, which is not a perfect square; therefore, there are two irrational roots. |
D. |
The discriminant is negative, so there are two complex roots. |
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Hint |
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12. |
Solve by using the quadratic formula. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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13. |
Which graph of the following functions will be strictly above the graph of ? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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14. |
Solve by graphing. |
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A. |
{x| 1.19 < x < 4.19} |
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B. |
{x| 4.19< x < 1.19} |
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C. |
{x| 1.19 < x < 0} |
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D. |
{x| 0 < x < 4.19} |
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Hint |
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