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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. |
 |
B. |
7 |
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C. |
41 |
D. |
77 |
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Hint |
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2. |
Write the point-slope form of an equation of the line that passes through
(-2, 5) and has a slope of zero. |
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A. |
y = 5 |
B. |
y - 5 = x + 2 |
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C. |
-2x + 5y = 0 |
D. |
x = -2 |
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Hint |
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3. |
Write the standard form of an equation of the line that passes through
(-2, 3) and has a slope of m = -3. |
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A. |
3x + y = -9 |
B. |
y = -3x - 9 |
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C. |
3x + y = 9 |
D. |
3x + y = -3 |
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Hint |
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4. |
Find the slope of the line that passes through (5, -5) and (9, -5). |
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A. |
0 |
B. |
undefined |
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C. |
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D. |
 |
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Hint |
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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. |
undefined |
D. |
 |
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Hint |
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6. |
Use the direct variation equation y = 22x to find x when y = 88. |
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A. |
x = -4 |
B. |
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C. |
x = 4 |
D. |
 |
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Hint |
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7. |
Write an equation of the line shown in the graph. |
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A. |
y = -2x – 5 |
B. |
y = 2x + 5 |
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C. |
y = -2x + 5 |
D. |
y = 2x – 5 |
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Hint |
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8. |
Graph 7x + 2y = -12. |
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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. |
Write an equation of a line that passes through (-3, 4) with slope - . |
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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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10. |
Write an equation of a line that passes through (-12, -14) with slope  . |
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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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11. |
Write the slope-intercept form of an equation for the line that passes through (-8, -1) and is parallel to the graph of  |
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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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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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C. |
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D. |
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Hint |
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13. |
Which relationship would most likely have a negative correlation? |
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A. |
The number of miles driven, and the number of gallons of gas in the car. |
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B. |
A person's age, and the address of the person. |
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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 height and the person's shoe size. |
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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 age, and the address of the person. |
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B. |
The number of pizzas ordered, and the total price of the bill. |
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C. |
The number of miles driven, and the number of gallons of gas in the car. |
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D. |
A person's height and the person's shoe size. |
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Hint |
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