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1. |
Find the value of 5 + 22 - 8 + 3. |
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A. |
-4 |
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B. |
4 |
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C. |
2 |
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D. |
-2 |
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Hint |
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2. |
Which equation is graphed below? |
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A. |
3x + y = 6 |
B. |
x - 3y = -6 |
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C. |
x + 3y = 6 |
D. |
3x - y = -6 |
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Hint |
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3. |
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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4. |
Write an equation of the line that passes through (10,-4) and is perpendicular to the line whose equation is  |
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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. |
A best-fit line drawn on a scatter plot ________ |
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A. |
must be drawn through the first and last data points. |
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B. |
is a line that goes through every data point. |
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C. |
always has a positive slope. |
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D. |
approximates the linear relationship of data points. |
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Hint |
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6. |
Name the ordered pair for point A. |
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A. |
(4, 2) |
B. |
(4, 1) |
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C. |
(1, 4) |
D. |
(2, 4) |
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Hint |
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7. |
Consider the function f (x) = -2(x + 8). Is this function a linear function? Why or why not? |
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A. |
No, f is not a function. |
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B. |
Yes, the function can be written in the form f (x) = mx + b. |
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C. |
No, the function cannot be written in the form f (x) = mx + b. |
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D. |
Yes, the coefficient of x is not zero. |
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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. |
If  find f (-9). |
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A. |
-1 |
B. |
-5 |
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C. |
5 |
D. |
1 |
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Hint |
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10. |
What is the inequality represented in the graph? |
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A. |
x + 2y > 4 |
B. |
x + 2y  4 |
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C. |
x + 2y > 4 |
D. |
x + 2y  4 |
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Hint |
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