SOLUTION: y varies directly as x^2 . y is 24 when x is 4. Find y when x is 2

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Question 141035: y varies directly as x^2 . y is 24 when x is 4. Find y when x is 2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
y varies directly as x^2
y = k*x^2
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y is 24 when x is 4
Use this information to find "k":
24 = k/16
k = 384
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EQUATION:
y = 384x^2
Find y when x is 2
y = 384*4
y = 1536
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Cheers,
Stan H.