| |
| |
1. |
Find the coordinates of the vertex of the graph of the equation
y = -3x2 - 12x - 5. |
| |
|
A. |
(-4, -5) |
B. |
(-2, 7) |
| |
|
C. |
(1, -20) |
D. |
(2, -41) |
| |
|
Hint |
|
| |
2. |
Consider the function f(x) = 2x. Find the domain and range. |
| |
|
|
| |
|
A. |
domain:all real numbers greater than zero range: all real numbers except zero |
| |
|
B. |
domain: all real numbers greater than zero range: all real numbers greater than zero |
| |
|
C. |
domain: all real numbers range: all real numbers less than zero |
| |
|
D. |
domain: all real numbers range: all real numbers |
| |
|
Hint |
|
| |
3. |
Find the line of symmetry of the graph of
f(x) = x2 – 4x + 5. |
| |
|
A. |
x = 2 |
B. |
x = –1 |
| |
|
C. |
x = 1 |
D. |
x = –2 |
| |
|
Hint |
|
| |
4. |
Find the x-intercepts of the graph of
f(x) = x2 – 2x – 3. |
| |
|
A. |
1, –4 |
B. |
–1, 4 |
| |
|
C. |
–1, 3 |
D. |
1, –3 |
| |
|
Hint |
|
| |
5. |
Find the x-intercepts of the graph of f(x) = –x2 + 4x + 12. |
| |
|
A. |
–2, 6 |
B. |
2, 16 |
| |
|
C. |
–2, 16 |
D. |
–2, –6 |
| |
|
Hint |
|
|
|