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1. |
Determine whether a scatter plot of a set of data involving height and size of feet would show a positive, negative, or no relationship. |
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A. |
no relationship |
B. |
negative |
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C. |
not enough information given |
D. |
positive |
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Hint |
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2. |
Determine whether a scatter plot of data comparing a homeowner's height and the height of the trees in his or her yard would show a positive, negative, or no relationship. |
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A. |
no relationship |
B. |
positive |
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C. |
negative |
D. |
not enough information given |
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Hint |
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3. |
If f(n) = -6n + 2, find f . |
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A. |
9 |
B. |
8 |
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C. |
-3 |
D. |
4 |
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Hint |
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4. |
The cost function for a company to produce x items is y = 56 + 2x and the revenue function is y = 3.6x. Graph the system of equations, and find the break-even point. |
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A. |
35 items |
B. |
40 items |
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C. |
30 items |
D. |
45 items |
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Hint |
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5. |
Find the next three terms of the sequence 2, -6, 18, -54, ... . |
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A. |
162, 486, -1458 |
B. |
162, -486, 1458 |
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C. |
None of these is correct. |
D. |
-162, 486, -1458 |
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Hint |
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6. |
Find the next three terms of 1,  , 0, -, …. |
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A. |
-1,  , -2 |
B. |
, -2,  |
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C. |
-1, -2, -3 |
D. |
1, , 2 |
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Hint |
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7. |
Which equation matches the graph shown? |
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A. |
y = 2x-2 |
B. |
y = x-2 |
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C. |
y = -x-2 |
D. |
y = 3x-2 |
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Hint |
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8. |
Which ordered pair is on the graph of y = - x – 5? |
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A. |
(-2, -7) |
B. |
(0, -5.5) |
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C. |
(1, -4.5) |
D. |
(-3, -3.5) |
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Hint |
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9. |
Find the solution of the system y = -3x + 2 and y = -1.5x + 5. |
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A. |
(-3, 9.5) |
B. |
(-1, 5) |
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C. |
(2, 8) |
D. |
(-2, 8) |
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Hint |
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10. |
A taxi costs $5 plus $8 for each mile. Which function relates the cost c of a taxi ride to the distance d traveled? |
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A. |
c = 8d + 5 |
B. |
c = 5d + 8 |
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C. |
d = 8c + 5 |
D. |
d = 5c + 8 |
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Hint |
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11. |
Find the slope of the line that passes through P(3, 4) and Q(-4, 6). |
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A. |
- |
B. |
 |
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C. |
1 |
D. |
-1 |
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Hint |
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12. |
Find the slope of the line that passes through K(-1, 7) and T(-1, -3). |
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A. |
0 |
B. |
5 |
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C. |
2 |
D. |
undefined |
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Hint |
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13. |
State the slope and y-intercept of the graph of y =  x – 7. |
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A. |
The slope is -, and the x-intercept is 7. |
B. |
The slope is 7, and the y-intercept is -. |
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C. |
The slope is , and the y-intercept is -7. |
D. |
The slope is -7 and the y-intercept is . |
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Hint |
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14. |
Graph y = -2x - 1 using the slope and y-intercept. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Graph y < -x – 4. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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16. |
Graph y  -x – 1. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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