Variation Review

In the equation y=kx, k is called the ______.

• Independent Variable

• Dependent Variable

• Constant of Variation

• Statement of Variation

Is this a direct variation?

• YES

• NO

Is this a direct variation?

• YES

• NO

Is this a direct variation?

• YES

• NO

18. Which of the following that illustrates inverse variation.

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• 
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19. Which of the following that illustrates inverse variation.

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• 
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2. If p varies directly as q and p = 18 when q = - 6, then k is __________.

• A. -3

• B. -1/3

• C. 1/3

• D. 3

5. If a varies directly as b, and a = 18 when b = 4.5, find a when b = 8.

• A. 3.2

• B. 4

• C. 32

• D. 74

Given that y varies inversely with x, if x =7 and y = 4, what is y when x = 2?

• 14
• 10
• 2
• -14

Does the equation show an inverse variation? 
y=10/x

• yes
• no