SOLUTION: z varies directly as the square of x. If z = 36 when x = 3, find z when x = 4

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Question 1080938: z varies directly as the square of x. If z = 36 when x = 3, find z when x = 4
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
z varies directly as the square of x. If z = 36 when x = 3, find z when x = 4
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z = k*x^2
36 = k*9
k = 4
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find z when x = 4
z = 4*4^2
z = 64