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1. |
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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2. |
Write  in standard form. |
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A. |
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B. |
2x + 3y = -8 |
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C. |
2x + 3y = 0 |
D. |
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Hint |
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3. |
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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4. |
Which relationship would most likely have a positive correlation? |
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A. |
the amount of memory in computer, and the number of keys on the keyboard. |
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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 tickets sold for a baseball game, and the number of hotdogs sold at the game. |
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D. |
the rate at which a train travels, and the time it takes for it to reach its destination. |
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Hint |
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5. |
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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6. |
Which equation is the slope-intercept form of the equation of the line that passes through (1, 2) and is parallel to 4x - 2y = 6? |
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A. |
y = 2x |
B. |
y = -2x + 1 |
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C. |
y = 4x + 3 |
D. |
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Hint |
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7. |
Which pair of lines graphed below are parallel? |
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A. |
k and m |
B. |
l and n |
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C. |
l and m |
D. |
k and n |
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Hint |
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8. |
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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9. |
Use the direct variation equation  to find x when y = -34. |
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A. |
x = -153 |
B. |
x = 153 |
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C. |
x = - |
D. |
x = |
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Hint |
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10. |
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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11. |
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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12. |
Which equation describes the line that contains the points (-1, -8) and (-9, -21)? |
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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. |
A ticket service is selling tickets to a concert. An order of 4 tickets has a price of $63 and an order of 6 tickets has a price of $92. Write an equation to find the price of any amount of tickets. |
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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. |
What is implied when it is said that x and y have no correlation? |
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A. |
When the value of x increases, the value of y increases. |
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B. |
When the value of x decreases, the value of y decreases. |
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C. |
When the value of x increases, the value of y decreases. |
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D. |
When the value of x increases, the value of y does not necessarily increase or decrease. |
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Hint |
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