| |
| |
1. |
Find the x- and y-intercepts for 3x + 4y - 12 = 0. |
| |
|
A. |
(-3, 0) and (0, -4) |
B. |
(-4, 0) and (0, -3) |
| |
|
C. |
(0, 3) and (4, 0) |
D. |
(0, 4) and (3, 0) |
| |
|
Hint |
|
| |
2. |
The population of Abnerville was 12,500 people in 1950. In 2000, the population was 250,000. Find the average rate of increase in the population over the 50 year period. |
| |
|
A. |
475 people per year |
B. |
47,500 people per year |
| |
|
C. |
47.5 or about 48 people per year |
D. |
4750 people per year |
| |
|
Hint |
|
| |
3. |
Rewrite the equation 3x + y = 7 in slope-intercept form. |
| |
|
A. |
y = -3x + 7 |
B. |
y = -3x - 7 |
| |
|
C. |
y = 3x - 7 |
D. |
y = 7x + 3 |
| |
|
Hint |
|
| |
4. |
Find the zero of f(x) = 2x - 3, then graph the function. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
Which function does not have a zero? |
| |
|
A. |
f(x) = –5x +3 |
B. |
f(x) = 3x + 5 |
| |
|
C. |
f(x) = -5 |
D. |
f(x) = x - 5 |
| |
|
Hint |
|
|
|