Find the variation constant and an equation of variation where y varies directly as x and y=48 when x=8. The variation constant k=?
The equation of variation is y=?

Question

Find the variation constant and an equation of variation where y varies directly as x and y=48 when x=8.  The variation constant k=?
The equation of variation is y=?

anonymous · Answer

PLEASE EXPLAIN!!

phi · Answer

direct variation means  y=kx    y varies directly with x.  k is a multiplier.
they tell you y=48 when x=8, so plug these numbers into the equation:
48=k*8
solve for k
the equation is y= kx with k replaced with the value you just found.

anonymous · Answer

I think i got part of the problem wrong then...oops. Thanks for your help.