SOLUTION: If y varies directly with x, and y = 64 when x = 4, find the constant of variation k. I am totally lost with this problem can someone please give me a hand. thanks.

Algebra ->  Linear-equations -> SOLUTION: If y varies directly with x, and y = 64 when x = 4, find the constant of variation k. I am totally lost with this problem can someone please give me a hand. thanks.      Log On


   

Question 146694: If y varies directly with x, and y = 64 when x = 4, find the constant of variation k.
I am totally lost with this problem can someone please give me a hand.
thanks.
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
If y varies directly with x then y=kx
and when x=4 then y=64
so 64=k(4) then k=64/4=16
Answer: k=16