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1. |
If y varies directly as x and y = 35 when x = 5, find y when x = 11. |
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A. |
77 |
B. |
7 |
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C. |
41 |
D. |
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Hint |
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2. |
Write the standard form of an equation of the line that passes through (3, 5) and has a slope of . |
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A. |
3x + 4y = 29 |
B. |
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C. |
undefined |
D. |
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Hint |
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3. |
Write the point-slope form of an equation of the line that passes through (4, -3) and (2, 1). |
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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. |
What is the slope of in parallelogram ABCD? |
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A. |
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B. |
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C. |
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D. |
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5. |
Find the slope of the line that passes through (-2, 9.5) and (4, 5). |
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A. |
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B. |
0 |
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C. |
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D. |
undefined |
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Hint |
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6. |
Suppose y varies directly as x, and y = -65 when x = -26. Write a direct variation equation that relates x and y. |
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A. |
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B. |
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D. |
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7. |
Graph  |
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A. |
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B. |
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D. |
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Hint |
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8. |
Write an equation of the line whose slope is and whose y-intercept is 2. |
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A. |
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B. |
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D. |
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9. |
Write an equation of a line that passes through (-6, 2) with slope . |
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A. |
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B. |
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D. |
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Hint |
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10. |
Which equation describes the line that contains the points (7, 17) and (15, 33)? |
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A. |
y = -2x + 31 |
B. |
y = 2x + 3 |
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C. |
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D. |
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Hint |
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11. |
Write the slope-intercept form of an equation for a line that passes through (-1, 0) and is perpendicular to the graph of 3x – 5y = 20. |
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A. |
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B. |
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D. |
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12. |
Write the slope-intercept form of an equation for a line perpendicular to the graph of y = -3x + 5 and passes through the x-intercept of that line. |
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A. |
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B. |
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Hint |
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13. |
Which scatter plot shows that x and y have a positive correlation? |
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A. |
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B. |
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D. |
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Hint |
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14. |
Which relationship would most likely have no correlation? |
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A. |
A person's height and the person's shoe size. |
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B. |
The number of miles driven, and the number of gallons of gas in the car. |
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C. |
The number of pizzas ordered, and the total price of the bill. |
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D. |
A person's age, and the address of the person. |
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Hint |
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