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1. |
What type of relationship is shown by the scatter plot? |
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A. |
both positive and negative |
B. |
positive |
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C. |
no relationship |
D. |
negative |
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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. |
negative |
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C. |
positive |
D. |
not enough information given |
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Hint |
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3. |
The function f(n) = 2.65n + 28.9 estimates the height in inches for a boy who is n years old. Choose values for n and graph the 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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4. |
The graph of the line y = -4x |
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A. |
passes through the
point (0, 0) |
B. |
passes through the
point (2, 8) |
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C. |
passes through the
point (1, 4) |
D. |
passes through the
point (-4, -4) |
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Hint |
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5. |
The fifth term of a geometric sequence is  . The common ratio is  . Find the first term. |
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A. |
9 |
B. |
10 |
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C. |
8 |
D. |
11 |
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Hint |
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6. |
Find the 10th term of the sequence 4, 7, 10, 13,…. |
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A. |
34 |
B. |
28 |
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C. |
31 |
D. |
37 |
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Hint |
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7. |
Copy and complete the function table to find the function values of {-2, -1, 0, 1, 2} for f(n) = 3n + 2. |
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A. |
f(-2) = -4, f(-1) = -1, f(0) = 0, f(1) = 5, f(2) = 8 |
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B. |
f(-2) = -8, f(-1) = -5, f(0) = 2, f(1) = 5, f(2) = 8 |
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C. |
f(-2) = -4, f(-1) = -1, f(0) = 2, f(1) = 5, f(2) = 7 |
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D. |
f (-2) = -4, f (-1) = -1, f (0) = 2, f (1) = 5, f(2) = 8 |
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Hint |
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8. |
Find f if f(n) = n + . |
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A. |
f= |
B. |
f= 1 |
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C. |
f= 2 |
D. |
f= |
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Hint |
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9. |
Find the solution of the system y =x + 2 and y = -1 x + 4. |
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A. |
 |
B. |
(1, 3) |
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C. |
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D. |
(-2, 7) |
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Hint |
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10. |
Find the slope of the line that passes through U(5, -2) and V(-1, -2). |
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A. |
0 |
B. |
undefined |
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C. |
-1 |
D. |
1 |
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Hint |
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11. |
Find the slope of the line that passes through K(-1, 7) and T(-1, -3). |
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A. |
0 |
B. |
2 |
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C. |
undefined |
D. |
5 |
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Hint |
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12. |
Graph y = x + 1 using the slope and y-intercept. |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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13. |
A long-distance phone company charges $5 per month and $0.10 per minute. The total bill y for the month can be represented by the equation y = 0.10x + 5. The graph of the equation is shown. Describe what the slope and y-intercept represent. |
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A. |
The slope represents the cost per minute. The y-intercept represents the monthly charge. |
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B. |
The slope resents the number of minutes used. The y-intercept represents the monthly charge. |
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C. |
The slope represents the monthly charge. The y-intercept represents the cost per minute. |
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D. |
The slope represents the total bill. The y-intercept represents the cost per minute. |
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Hint |
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14. |
Solve the system y =  x + 3 and y = x – 1 by graphing. |
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A. |
(-2, 2) |
B. |
(8, 7) |
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C. |
no solution |
D. |
(4, 5) |
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Hint |
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15. |
Graph y  2x – 1. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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16. |
Mario must finish his science and German homework during the next 35 minutes. Which graph represents the number of minutes Mario can spend on each subject? |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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