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A proportional relationship is represented by the equation 2x=18y. If y=kx, where k is the constant of proportionality, what is the value of k?

 

Answers could possibly be 1/9, 1/2, 2, 9 (multiple choice)

 May 25, 2019
 #1
avatar+129899 
+1

18y  = 2x       divide both sides by 18

 

y  = (2/18) x

 

y = (1/9) x 

 

So   k = 1/9

 

 

 

 

 

cool cool cool

 May 25, 2019
 #2
avatar+2864 
+1

In these problems, I always try to match it to the form y=kx.

 

You can do this by isolating k

CalculatorUser  May 25, 2019

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