| |
| |
1. |
If n is the number of seconds between the lightning and the thunder
and f(n) is the number of feet between you and the lightning, then
f(n) = 1100n. If n is 7, find f(n). |
| |
|
A. |
157.1 feet |
B. |
9000 feet |
| |
|
C. |
8800 feet |
D. |
7700 feet |
| |
|
Hint |
|
| |
2. |
Make a function table for f(n) = n - 3. |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
3. |
Three ordered pairs for f(n) = 2n - 1 are (-1, -3), (1, 1), and (2, 3). Graph the function. |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
4. |
Graph the system of equations y = 3x + 2 and y = 2 - x. Then find the solution of the system. |
| |
|
A. |
(-1, 2) |
B. |
(0, 2) |
| |
|
C. |
(2, -1) |
D. |
(2, 0) |
| |
|
Hint |
|
| |
5. |
The cost function for a company to produce x items is y = 22.5 + 2x and the revenue function is y = 2.5x. If the profit is the revenue minus the cost, what is the profit at the break-even point? |
| |
|
A. |
$112.50 |
B. |
$75 |
| |
|
C. |
$63 |
D. |
$0 |
| |
|
Hint |
|
| |
6. |
Suppose a box of oatmeal has the following table to determine the right amounts of water and oatmeal mix. How many cups of water are needed for 4, 5, and 6 serving of oatmeal? |
| |
|
 |
| |
|
A. |
3 cups,  cups, and 4 cups. |
B. |
 cups, 3 cups, and cups. |
| |
|
C. |
cups, 4 cups, and  cups. |
D. |
None of these is correct. |
| |
|
Hint |
|
| |
7. |
Which type of relationship does the scatter plot show? |
| |
|
 |
| |
|
A. |
Both Positive and Negative |
B. |
Positive |
| |
|
C. |
Negative |
D. |
No Relationship |
| |
|
Hint |
|
| |
8. |
Determine whether a scatter plot of a set of data involving time spent studying and grades on a test would show a positive, negative or no relationship? |
| |
|
A. |
Positive |
B. |
Negative |
| |
|
C. |
No Relationship |
D. |
Not Enough Information Given |
| |
|
Hint |
|
| |
9. |
Find the 10th term of the sequence 4, 7, 10, 13,…. |
| |
|
A. |
28 |
B. |
31 |
| |
|
C. |
37 |
D. |
34 |
| |
|
Hint |
|
| |
10. |
Which graph represents y = 2x + 3? |
| |
|
A. |
 |
| |
|
B. |
 |
| |
|
C. |
 |
| |
|
D. |
 |
| |
|
Hint |
|
| |
11. |
Find the slope of the line that passes through M(-6, 2) and N(-4, -2). |
| |
|
A. |
-2 |
B. |
2 |
| |
|
C. |
 |
D. |
- |
| |
|
Hint |
|
| |
12. |
Find the slope of the line that passes through W(2, -1) and X(-4, -1). |
| |
|
A. |
 |
B. |
0 |
| |
|
C. |
undefined |
D. |
3 |
| |
|
Hint |
|
| |
13. |
State the slope and y-intercept of the graph of y =  x – 7. |
| |
|
A. |
The slope is 7, and the y-intercept is -. |
B. |
The slope is , and the y-intercept is -7. |
| |
|
C. |
The slope is -, and the x-intercept is 7. |
D. |
The slope is -7 and the y-intercept is . |
| |
|
Hint |
|
| |
14. |
Graph y = 4x - 3 using the slope and y-intercept. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
15. |
Graph y > - x + 3. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
| |
16. |
Graph y  -x – 1. |
| |
|
A. |
 |
B. |
 |
| |
|
C. |
 |
D. |
 |
| |
|
Hint |
|
|
|