SOLUTION: Which equation is a direct variation with a constant of variation of 2/3? A)y=2x+3 B)2y=3x C)3y=2x D)x=2y+3

Question 199367: Which equation is a direct variation with a constant of variation of 2/3?
A)y=2x+3 B)2y=3x C)3y=2x D)x=2y+3
Answer by Edwin McCravy(20056) (Show Source): You can put this solution on YOUR website!
Which equation is a direct variation with a constant of variation of 2/3?
A)y=2x+3 B)2y=3x C)3y=2x D)x=2y+3

 
We are looking for the one when solved for y gives

Solve each for y:

A)  is already solved for y.

B)  

Solve it for y

, that's not it.

C)3y=2x 

Solve it for y:

, yes that's it!!!

D)x=2y+3

We know it isn't this one, since the
answer is C, but let's see why it
isn't anyway:

Solve it for y:



It's not.

The only correct answer is C)

Edwin

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