SOLUTION: Find the variation constant and an equation of variation where y varies directly as x and y=8 when x=4. The variation constant is k=?. The equation of variation is y=?

Algebra ->  Equations -> SOLUTION: Find the variation constant and an equation of variation where y varies directly as x and y=8 when x=4. The variation constant is k=?. The equation of variation is y=?      Log On


   

Question 157343: Find the variation constant and an equation of variation where y varies directly as x and y=8 when x=4. The variation constant is k=?. The equation of variation is y=?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Constant of direct variation,
k=y%2Fx=8%2F4=2
THe equation of variation would then be,
y=2x