SOLUTION: The variable x and y vary directly. When x=-4, y=16. What is the constant of variation?

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Question 615416: The variable x and y vary directly. When x=-4, y=16. What is the constant of variation?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The variable x and y vary directly. When x=-4, y=16. What is the constant of variation?
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y = kx
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16 = k*-4
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k = -4 is the constant of variation.
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Cheers,
Stan H.