SOLUTION: If y varies directly with x, and y = 500 when x = 200, find the constant of variation k.

SOLUTION: If y varies directly with x, and y = 500 when x = 200, find the constant of variation k.

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Question 94165: If y varies directly with x, and y = 500 when x = 200, find the constant of variation k.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
"If y varies directly with x,"
y = x*k
:
"and y = 500 when x = 200, find the constant of variation k."
Substitute for y and x:
500 = 200k
k = 500/200
k = 2.5
:
Check:
y = 2.5(200)
y = 500
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