SOLUTION: Assume that y varies inversely as x. If y = -8 when x = -9, find y when x = 4

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Question 447728: Assume that y varies inversely as x. If y = -8 when x = -9, find y when x = 4
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


If varies inversely as , then



Then if when , then



From which we derive:



Hence:



So if , substitute 4 for and do the arithmetic.

John

My calculator said it, I believe it, that settles it
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