If y varies inversely as x, and y = 4 as x = 8, find y for the x-value of 2.

asked Dec 22, 2017 160k views

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For inverse variation, y = k/x
4 = k/8
k = 4 x 8 = 32
y = 32/x

When x = 2, y = 32/2 = 16.

Amanda S answered Dec 28, 2017

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