| |
| |
1. |
Use the graph to determine the solution of -x2 + 6x - 9 = 0. |
| |
|
 |
| |
|
A. |
4 |
B. |
-9 |
| |
|
C. |
2 |
D. |
3 |
| |
|
Hint |
|
| |
2. |
Solve 2p2 - 3p -2 = 0 by factoring. |
| |
|
A. |
, 2 |
B. |
- , 2 |
| |
|
C. |
1, 2 |
D. |
-2,  |
| |
|
Hint |
|
| |
3. |
Solve x2 - 6x = 0 by graphing or by factoring. |
| |
|
A. |
0 |
B. |
-6, 0 |
| |
|
C. |
0, 6 |
D. |
-6 |
| |
|
Hint |
|
| |
4. |
Which value of c makes the trinomial x2 + 16x + c a perfect square? |
| |
|
A. |
128 |
B. |
32 |
| |
|
C. |
256 |
D. |
64 |
| |
|
Hint |
|
| |
5. |
Solve x2 - 6x + 25 = 0. |
| |
|
A. |
 |
B. |
3 ± 4i |
| |
|
C. |
-3 ± 4i |
D. |
6 ± 8i |
| |
|
Hint |
|
| |
6. |
Suppose a ball is thrown straight up at a speed of 50 feet per second. The time in seconds that it takes for the ball to hit the ground can be found by solving the equation 5 + 50t - 16t2 = 0. Approximately how long does it take for the ball to hit the ground? |
| |
|
A. |
3.2 s |
B. |
0.1 s |
| |
|
C. |
4.8 s |
D. |
-0.1 s |
| |
|
Hint |
|
| |
7. |
Determine whether f(x) = x2 3x + 4 has a maximum or a minimum. |
| |
|
A. |
both |
B. |
maximum |
| |
|
C. |
cannot be determined from given information |
D. |
minimum |
| |
|
Hint |
|
| |
8. |
Find the minimum value of . |
| |
|
A. |
2 |
B. |
(2, 7) |
| |
|
C. |
7 |
D. |
11 |
| |
|
Hint |
|
| |
9. |
Solve -x2 + 3x + 5 = 0 by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. |
| |
|
A. |
between 2 and1, and between 3 and 4 |
| |
|
B. |
between 1 and 0, and between 4 and 5 |
| |
|
C. |
between 2 and -1, and between 4 and 5 |
| |
|
D. |
between 1 and 0, and between 3 and 4 |
| |
|
Hint |
|
| |
10. |
Solve x2 + 8x + 16 = 36 by using the Square Root Property. |
| |
|
A. |
-2 and 14 |
B. |
2 |
| |
|
C. |
-4 |
D. |
2 and 10 |
| |
|
Hint |
|
| |
11. |
What is the equation of the parabola whose vertex is at (-3, 1) and passes through the point (-2, 4)? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
12. |
Find the axis of symmetry of the following function:  |
| |
|
A. |
x =  |
B. |
x = 7 |
| |
|
C. |
x =  |
D. |
x = 7 |
| |
|
Hint |
|
| |
13. |
Solve by graphing. |
| |
|
A. |
{x| 0 < x < 3.12} |
B. |
{x| 1.12 < x < 0} |
| |
|
C. |
{x| 1.12 < x < 3.12} |
D. |
{x| 0 < x < 3} |
| |
|
Hint |
|
| |
14. |
When is it true that x2 + x > 2? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
all real numbers |
| |
|
Hint |
|
|
|