Identify the function in which y varies directly with x. a. x=5y b. x=5y+5 c. x=5y-5 d. y=5x

So I'm not entirely sure but I believe the answer is Y=5x, I think this is the answer because the variable y is dependent on x for it's value, if x=1 y=5(1) y=5.   if x=4 y=5(4)  y=20  all of the other problems have x dependent on y so I believe the answer is D. Y=5x

Hope this helps.

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