Find an equation of variation in which the following are true.y varies directly as the square of x, and y = 17.15 when x = 7.

A. y = 
B. y = x2
C. y = x2
D. y = x2

Answer: D

Mathematics

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A. 6
B. 6
C. 5
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A. f(x, y, z) = -  + C
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