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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. |
41 |
B. |
77 |
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C. |
7 |
D. |
 |
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Hint |
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2. |
Determine the value of r so that the line through (r, 4) and (-7, 7) has a slope of  . |
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A. |
-3 |
B. |
9 |
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C. |
3 |
D. |
-11 |
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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. |
y = -3x - 9 |
B. |
3x + y = -3 |
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C. |
3x + y = 9 |
D. |
3x + y = -9 |
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Hint |
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4. |
What is implied when it is said that x and y have a negative correlation? |
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A. |
When the value of x increases, the value of y does not necessarily increase or decrease. |
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B. |
When the value of x is negative, the value of y negative. |
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C. |
When the value of x increases, the value of y increases. |
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D. |
When the value of x increases, the value of y decreases. |
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Hint |
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5. |
Write the standard form of the equation of the line that passes through
(-2, -3) and (2, -5). |
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A. |
2x + y = -7 |
B. |
2x - y = -1 |
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C. |
x - 2y = -8 |
D. |
x + 2y = -8 |
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Hint |
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6. |
Which graph is the graph of 3(y - 3) = -2x? |
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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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7. |
Use the direct variation equation  to find x when y = -34. |
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A. |
x = 153 |
B. |
x =  |
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C. |
x = - |
D. |
x = -153 |
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Hint |
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8. |
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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9. |
Write an equation of a line that passes through (-12, -14) with slope  . |
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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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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 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 no correlation? |
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A. |
The number of pizzas ordered, and the total price of the bill. |
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B. |
A person's age, and the address of the person. |
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C. |
A person's height and the person's shoe size. |
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D. |
The number of miles driven, and the number of gallons of gas in the car. |
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Hint |
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14. |
Which of the following pairs of coordinates are on a line with an undefined slope? |
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A. |
(3, -2), (3, 5) |
B. |
(-2, -2), (4, 4) |
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C. |
(2, 1), (5, -2) |
D. |
(-4, -3), (3, -3) |
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Hint |
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