Suppose that y varies inversely with x. Write a function that models the inverse function. x = 15 when y = 2.
A. y=30/x
B. y=7.5x
C. y=15/2x
D. y=30x

ANSWERS

2017-08-17 01:00:23

Inverse variation means y=k/x (direct variation is y=kx) You are given a point, so you can solve for the constant k... 2=k/15 k=30 so the function is: y=30/x

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