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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. |
no relationship |
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C. |
positive |
D. |
negative |
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Hint |
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2. |
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. |
not enough information given |
B. |
no relationship |
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C. |
negative |
D. |
positive |
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Hint |
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3. |
Make a function table for f(n) = n - 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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Hint |
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4. |
Many children grow at a predictable rate. The function f(n) = 2.65n + 28.9 can be used to estimate the height in inches for a boy who is n years old. The function is accurate until about age 13. Complete the function table. |
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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. |
The graph of a linear function is _______. |
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A. |
None of these is correct |
B. |
a straight line |
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C. |
a curved line |
D. |
a horizontal line only |
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Hint |
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6. |
Find the solution of the system y = 2.5x + 1.5 and -3x + y = 1. |
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A. |
(2, -1) |
B. |
(3, 1) |
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C. |
(4, 1) |
D. |
(1, 4) |
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Hint |
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7. |
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. |
162, -486, 1458 |
D. |
None of these is correct. |
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Hint |
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8. |
Find the next three terms of  , 1, 4, 13. |
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A. |
40, 121, 360 |
B. |
40, 121, 364 |
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C. |
40, 120, 364 |
D. |
40, 121, 365 |
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Hint |
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9. |
Which equation passes through the points (-1, -1), (0, 1), and (1, 3)? |
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A. |
y = x+1 |
B. |
y = 2x+1 |
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C. |
y = -2x+1 |
D. |
y = +1 |
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Hint |
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10. |
Find the slope of the line that passes through P(3, 4) and Q(-4, 6). |
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A. |
1 |
B. |
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C. |
-1 |
D. |
- |
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Hint |
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11. |
Find the slope of the line that passes through R(-3, 4) and S(5, 2). |
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A. |
4 |
B. |
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C. |
- |
D. |
-4 |
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Hint |
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12. |
Graph y = 4x - 3 using the slope and y-intercept. |
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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. |
A T-shirt company charges a design fee of $25 and then sells the shirts for $10 each. The total cost y can be represented by the equation y = 10x + 25, where x represents the number of T-shirts. 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 T-shirt. The y-intercept represents the one-time design charge. |
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B. |
The slope represents the total cost of the T-shirts. The y-intercept represents the one-time design charge. |
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C. |
The slope represents the one-time design charge. The y-intercept represents the cost per T-shirt. |
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D. |
The slope represents the number of T-shirts. The y-intercept represents the cost per T-shirt. |
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Hint |
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14. |
Solve the system y = 2x – 5 and y = 7 by substitution. |
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A. |
(1, 7) |
B. |
(7, -19) |
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C. |
(7, 9) |
D. |
(6, 7) |
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Hint |
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15. |
The tickets for the student council dance are $5 for singles and $8 for couples. To cover the expenses, the student council must sell at least $800 worth of tickets. Which graph represents the number of each type of ticket the student council must sell? |
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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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16. |
Coach Wilson has $60 to spend on pizza and pitchers of soft drinks for his team. If a pizza costs $12 and a pitcher of soft drink costs $3, which combination of pizzas and soft drinks can he buy? |
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A. |
6 pizzas and no pitchers of soft drink |
B. |
4 pizzas and 5 pitchers of soft drink |
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C. |
4 pizzas and 3 pitchers of soft drink |
D. |
5 pizzas and 4 pitchers of soft drink |
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Hint |
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