SOLUTION: If y varies directly with x, and y = 400 when x = 1000, find the constant of variation k.

Algebra ->  Graphs -> SOLUTION: If y varies directly with x, and y = 400 when x = 1000, find the constant of variation k.       Log On


   

Question 105283: If y varies directly with x, and y = 400 when x = 1000, find the constant of variation k.
Answer by HyperBrain(694) About Me  (Show Source):
You can put this solution on YOUR website!
let k=the constant of variation
then,
y=kx
And, if y=400, when x=1000,
400=1000k
__k=400%2F1000
__k=2%2F5

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