Question

Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y when x = –2?

Answer 1

Hello,

y=kx and if y=8 then x=-6
==>8=k*(-6)==>k=-4/3

if x=-2 then y=-4/3 * (-2)=8/3