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1. |
Which table is represented by the 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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2. |
Which table has correct ordered pairs for the equation x - 2y = 4? |
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B. |
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C. |
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D. |
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3. |
Which graph does not represent a function? |
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A. |
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B. |
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D. |
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4. |
A linear function that can be written in the form y = kx, where k 0, is called a(n)_______. |
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A. |
equivalent variation |
B. |
variable variation |
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C. |
direct variation |
D. |
functional variation |
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Hint |
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5. |
Which statement is not true about an inverse variation? |
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A. |
If y varies inversely as x, then y is inversely proportional to x. |
B. |
The constant of variation is . |
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C. |
The product of the variables is constant. |
D. |
In the equation xy = k, k is a constant. |
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6. |
Choose the graph that expresses {(-3, 4), (-1, -5), (0, 2), (2, 3), (3, -4)}. |
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7. |
Which of the ordered pairs is a solution of y = -4x – 4? |
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A. |
(-2, 4) |
B. |
(3, -8) |
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C. |
(1, -6) |
D. |
(0, 4) |
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8. |
Select the correct graph for the relation y + 5x = 2 if the domain is {0, 1, 2, 3, 4}. |
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A. |
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B. |
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9. |
Which is true of the equation y = cx where c is a constant? |
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A. |
The graph will be decreasing. |
B. |
The graph will always cross the x-axis at exactly one point. |
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C. |
The graph will be increasing. |
D. |
The graph passes through the origin. |
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Hint |
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10. |
In physics the equation F = ma means ''force equals mass times acceleration.'' The acceleration of a freely falling object is 9.8 m/s2. Use the function F(m) = 9.8m to find the force in Newtons (N) of a freely falling object with a mass of 14 g. |
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A. |
137.2 N |
B. |
8.2 N |
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C. |
1.43 N |
D. |
23.8 N |
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Hint |
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11. |
Which is the graph of y = -3x |
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A. |
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12. |
Which statement is not true about a direct variation? |
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A. |
y varies directly as x. |
B. |
The constant of variation is . |
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C. |
The graph is straight line. |
D. |
y is inversely proportional to x. |
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Hint |
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