SOLUTION: how to solve this equation using direct variation? 5x-6y=0

Question 241069: how to solve this equation using direct variation? 5x-6y=0
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!
how to solve this equation using direct variation? 5x-6y=0

y varies directly with x.  So we write

y = kx


We can see that when x=6 and y=5, the equation
5x-6y=0 is true, for 5(6)-6(5)=0

So we substitute these values in

y = kx

5 = k(6)

Divide both sides by 6



Therefore replacing k by  in y=kx we have

y = x

Edwin

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