| |
| |
1. |
Choose the graph that is not a function. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
2. |
Find the y-intercept of the graph of 2x - 5y = 10. |
| |
|
A. |
5 |
B. |
0 |
| |
|
C. |
2 |
D. |
-2 |
| |
|
Hint |
|
| |
3. |
Describe the line that is graphed below. |
| |
|
 |
| |
|
A. |
passes through the point (3,-2) with a slope of  |
| |
|
B. |
passes through the point (3,-2) with a slope of  |
| |
|
C. |
passes through the point (3,-2) with a slope of  |
| |
|
D. |
passes through the point (3,2) with a slope of  |
| |
|
Hint |
|
| |
4. |
When Kristin works 8 hours, she earns $60. When she works 20 hours, she earns $150. Write a linear equation that describes her earnings. Assume that the changes increase linearly. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
5. |
Choose the scatter plot that has a prediction equation with a negative slope. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
6. |
The table below shows the land-speed records to the nearest mile per hour. Draw a scatter plot for the data and use it to predict the approximate land-speed record for the year 2005. Assume the rate of increase of speed records remains the same. |
| |
|
 |
| |
|
A. |
980 mph |
B. |
600 mph |
| |
|
C. |
830 mph |
D. |
700 mph |
| |
|
Hint |
|
| |
7. |
If f(x) = [2x - 1], find f(5.4). |
| |
|
A. |
10 |
B. |
9.8 |
| |
|
C. |
8 |
D. |
9 |
| |
|
Hint |
|
| |
8. |
Choose the line whose slope is undefined. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
9. |
Is the relation shown in the graph a function? Why or why not? |
| |
|
 |
| |
|
A. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
| |
|
B. |
Yes, the relation contains very few ordered pairs. |
| |
|
C. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
| |
|
D. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
| |
|
Hint |
|
| |
10. |
Consider the formula F(c) = 1.8c + 32, where c is the temperature in degrees Celsius and F(c) is the temperature in degrees Fahrenheit. If it is 0° C at the beginning of the day, and it is 11° C at noon, what was the change in temperature in degrees Fahrenheit? |
| |
|
A. |
11 |
B. |
-12.2 |
| |
|
C. |
51.8 |
D. |
19.8 |
| |
|
Hint |
|
| |
11. |
What is the slope of the line with equation  |
| |
|
A. |
 |
B. |
-7 |
| |
|
C. |
 |
D. |
7 |
| |
|
Hint |
|
| |
12. |
A cellular telephone company charges $0.20 per minute or fraction thereof. If Miguel, a customer of this company, talks on his cell phone for 23.27 minutes, what will his charges be for that phone call? |
| |
|
A. |
$4.60 |
B. |
$4.65 |
| |
|
C. |
$4.80 |
D. |
$4.66 |
| |
|
Hint |
|
| |
13. |
Which graph shows the inequality 5x – 2y  8? |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
14. |
What is the inequality represented in the graph? |
| |
|
 |
| |
|
A. |
x + 2y > 4 |
B. |
x + 2y 4 |
| |
|
C. |
x + 2y > 4 |
D. |
x + 2y  4 |
| |
|
Hint |
|
|
|