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Suppose that x and y vary inversely, and x=4 when y=9. Write the function that models the inverse variation.

Stein101  May 22, 2017
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 #1
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y = k/x      we need to find "k"   .....so.....

 

9  =  k / 4       multiply both sides by 4

 

36  = k

 

So....our function is :

 

y = 36 / x

 

 

cool cool cool

CPhill  May 22, 2017
 #2
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Thank you

Stein101  May 22, 2017

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