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

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Question 241069: how to solve this equation using direct variation? 5x-6y=0
Answer by Edwin McCravy(6938) About Me  (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

5%2F6=k

Therefore replacing k by 5%2F6 in y=kx we have

y = 5%2F6x

Edwin