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1. |
Evaluate a - b2 if a = 4 and b = 3. |
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A. |
13 |
B. |
-5 |
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C. |
-13 |
D. |
1 |
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Hint |
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2. |
In a science experiment, students hung a cup from a spring and measured the length of the spring when candies were added to it. Their data are shown in the table below. Which statement is true? |
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A. |
The relation is a function because the range values increase. |
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B. |
The relation is not a function because only a line can be a function. |
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C. |
The relation is not a function because there are two y values for some x values. |
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D. |
The relation is a function because for each x value, there is exactly one y value. |
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Hint |
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3. |
What is the x-intercept of the graph below? |
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A. |
2 |
B. |
-3 |
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C. |
3 |
D. |
-2 |
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Hint |
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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. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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5. |
Choose the scatter plot that has a prediction equation with a negative slope. |
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A. |
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B. |
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C. |
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D. |
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6. |
Find the domain of the relation shown in the graph. |
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A. |
{-2, -1, 1, 2, 3, 5} |
B. |
{-3, -2, -1, 0, 1, 3} |
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C. |
{0, 1, 2, 3} |
D. |
{-3, -2, -1, 0, 1, 2, 3, 5} |
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Hint |
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7. |
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? |
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A. |
-12.2 |
B. |
11 |
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C. |
19.8 |
D. |
51.8 |
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Hint |
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8. |
Find the slope of the line below. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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9. |
Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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10. |
A line of fit is drawn on a scatter plot showing the number of pets owned by automobile owners and the number of miles driven each month. What would probably be the best description of the slope of this line? |
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A. |
negative |
B. |
positive |
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C. |
zero |
D. |
undefined |
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Hint |
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11. |
Suppose a plant grows one inch every year. If x is how old the plant is (in years), and f (x) is how tall the plant is (in inches), what type of function is f (x)? |
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A. |
step function |
B. |
constant function |
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C. |
absolute value function |
D. |
identity function |
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Hint |
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12. |
Which graph shows the inequality 5x – 2y  8? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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13. |
Graph the inequality y  -| x | + 3. |
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A. |
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B. |
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C. |
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D. |
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14. |
Solve  for r. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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15. |
RUNNING Jamil is running in a 5 mile race at a track meet. Refer to the graph which shows his times over the course of the race. Find the average rate of change of the graph in order to find Jamil’s average pace. |
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A. |
8.5 min/mile |
B. |
8.0 min/mile |
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C. |
7.5 min/mile |
D. |
9.25 min/mile |
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Hint |
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16. |
Choose the correct graph for the piece-wise defined function  . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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17. |
BICYCLES A bike rental company charges for rentals at the rate of $15 per hour or part thereof. Determine the correct graph to represent this situation. |
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A. |
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B. |
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C. |
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D. |
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Hint |
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18. |
The graph of  is shown here. Determine the graph that correctly represents the transformation  . |
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A. |
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B. |
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C. |
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D. |
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Hint |
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