| |
| |
1. |
Use the graph to determine the solution of -x2 + 6x - 9 = 0. |
| |
|
 |
| |
|
A. |
4 |
B. |
-9 |
| |
|
C. |
2 |
D. |
3 |
| |
|
Hint |
|
| |
2. |
Find the axis of symmetry of the graph of g(x) = x2 - 5x + 2. |
| |
|
A. |
x = -5 |
B. |
 |
| |
|
C. |
x = 2 |
D. |
 |
| |
|
Hint |
|
| |
3. |
Solve the equation w2 - 4w = 12 by graphing. |
| |
|
A. |
0, -3 |
B. |
6 |
| |
|
C. |
1, 4 |
D. |
-2, 6 |
| |
|
Hint |
|
| |
4. |
Solve m2 - 2m = 15 by factoring. |
| |
|
A. |
-5, 3 |
B. |
3 |
| |
|
C. |
-3, 5 |
D. |
5 |
| |
|
Hint |
|
| |
5. |
Which value of c makes the trinomial x2 + 16x + c a perfect square? |
| |
|
A. |
32 |
B. |
128 |
| |
|
C. |
64 |
D. |
256 |
| |
|
Hint |
|
| |
6. |
Solve x2 - 6x + 25 = 0. |
| |
|
A. |
6 ± 8i |
B. |
-3 ± 4i |
| |
|
C. |
3 ± 4i |
D. |
 |
| |
|
Hint |
|
| |
7. |
Solve 2x2 - 4x + 3 = 0. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
8. |
Stan the Hot Dog Man sells 100 hot dogs per day for $2 each, so his daily revenue is $200. He estimates that for every 25 cents he increases the price of a hot dog, he will sell 5 fewer. What range of prices can he charge so that his daily revenue is at least $225? |
| |
|
A. |
$2.00-$4.00 |
B. |
$3.00-$4.50 |
| |
|
C. |
$2.50-$4.50 |
D. |
$2.25-$2.50 |
| |
|
Hint |
|
| |
9. |
If the vertex of a parabola is (3, -4), what is its axis of symmetry? |
| |
|
A. |
y = 3 |
B. |
y = -4 |
| |
|
C. |
x = -4 |
D. |
x = 3 |
| |
|
Hint |
|
| |
10. |
What is the negative solution of the equation ? |
| |
|
A. |
3 |
B. |
–5 |
| |
|
C. |
 |
D. |
–3 |
| |
|
Hint |
|
| |
11. |
Solve x2 + 8x + 16 = 36 by using the Square Root Property. |
| |
|
A. |
-4 |
B. |
-2 and –14 |
| |
|
C. |
2 |
D. |
2 and –10 |
| |
|
Hint |
|
| |
12. |
Which of the following functions will have the widest graph? |
| |
|
A. |
y = x2 + x – 3 |
B. |
y = 3x2 – 8 |
| |
|
C. |
y = x2 +3x + 1 |
D. |
y = –2x2 + 5x – 1 |
| |
|
Hint |
|
| |
13. |
If the graph of y = x2 is shifted 4 units to the right, and 2 units down, what is the equation of the new graph? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
14. |
Solve x2 + 7x < –12 algebraically. |
| |
|
A. |
{x| –3 < x < –4} |
B. |
{x| 4 < x < 3} |
| |
|
C. |
{x| 3 < x < 4} |
D. |
{x| –4 < x < –3} |
| |
|
Hint |
|
|
|