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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. |
77 |
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C. |
7 |
D. |
41 |
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Hint |
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2. |
Determine the slope of the line graphed below. |
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 |
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A. |
0 |
B. |
 |
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C. |
 |
D. |
 |
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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. |
 |
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C. |
-2 |
D. |
 |
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Hint |
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4. |
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. |
-2x + 5y = 0 |
B. |
y = 5 |
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C. |
y - 5 = x + 2 |
D. |
x = -2 |
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Hint |
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5. |
Write  in standard form. |
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A. |
 |
B. |
 |
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C. |
2x + 3y = -8 |
D. |
2x + 3y = 0 |
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Hint |
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6. |
Write an equation in slope-intercept form of a line with a slope of  and a y-intercept of -2. |
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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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7. |
A direct variation equation has (-2, 4) and (n, -8) as solutions. Find the missing value. |
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A. |
1 |
B. |
4 |
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C. |
-2 |
D. |
16 |
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Hint |
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8. |
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. |
3x + 4y = -16 |
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B. |
 |
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C. |
8y = - 6x |
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D. |
 |
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Hint |
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9. |
Write an equation of the line whose slope is  and whose y-intercept is 2. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Write an equation of a line that passes through (9, -64) with slope –7. |
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A. |
y = -7x – 1 |
B. |
y = -7x – 127 |
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C. |
y = -7x |
D. |
y = -7x + 1 |
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Hint |
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11. |
A rental car company charges $75 for a 3-day rental and $155 for a 7-day rental. Write an equation to find the amount that the rental car company will charge for any number of days. |
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A. |
y = 80x – 165 |
B. |
y = 20x + 15 |
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C. |
y = 20x |
D. |
y = 80x |
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Hint |
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12. |
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. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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13. |
What is implied when it is said that x and y have a positive 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 increases, the value of y decreases. |
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C. |
When the value of x decreases, the value of y does not necessarily increase or decrease. |
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D. |
When the value of x increases, the value of y increases. |
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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 miles driven, and the number of gallons of gas in the car. |
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C. |
A person's height and the person's shoe size. |
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D. |
The number of pizzas ordered, and the total price of the bill. |
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Hint |
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