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If y=kx14 and y=32 at x=81, what is the value of y at x=4?

 Sep 19, 2021
 #1
avatar+2407 
+2

y = k x^(1/4)

Let's start by finding k. 

3sqrt(2) = k * (81)^(1/4)

3sqrt(2) = k * 3

k = sqrt(2)

 

y = sqrt(2) * 4^(1/4)

Can you take it from here? :))

 

=^._.^=

 Sep 19, 2021
 #2
avatar+136 
+3

Thx, I get it now laugh

NaturalDisaster  Sep 19, 2021

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