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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. |
7 |
B. |
77 |
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C. |
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D. |
41 |
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Hint |
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2. |
Determine the value of r so that the line through (5, 2) and (7, r) has a slope of  . |
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A. |
6 |
B. |
1 |
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C. |
3 |
D. |
2 |
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Hint |
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3. |
Determine the slope of the line that passes through (2, 2) and (5, 8). |
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A. |
-2 |
B. |
2 |
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C. |
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D. |
 |
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Hint |
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4. |
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 = -3 |
B. |
3x + y = 9 |
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C. |
y = -3x - 9 |
D. |
3x + y = -9 |
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Hint |
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5. |
Write the point-slope form of an equation of the line that contains  , which is the hypotenuse of the right triangle. |
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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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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. |
Three out of the four equations listed below are equations of lines that are parallel to each other. Which equation does not have a graph that is a line parallel to the other three? |
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A. |
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B. |
8y = - 6x |
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C. |
3x + 4y = -16 |
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D. |
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Hint |
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8. |
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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9. |
Graph  |
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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 (-6, 2) 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 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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12. |
Line segment  has endpoints A(-6, -3) and B(2, 1). Line segment  has endpoints C(-4, 8) and D(3, -6). Is perpendicular to ? Why? |
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A. |
No, the lines are parallel. |
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B. |
No, the lines intersect but not at right angles. |
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C. |
Yes, the slopes are opposites. |
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D. |
Yes, the slopes are negative reciprocals. |
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Hint |
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13. |
Which scatter plot shows that x and y have a negative correlation? |
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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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14. |
Which relationship would most likely have a negative correlation? |
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A. |
The number of pizzas ordered, and the total price of the bill. |
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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. |
A person's age, and the address of the person. |
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D. |
A person's height and the person's shoe size. |
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Hint |
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