If y varies directly with x and y=8 when x=2;find when x=6

Answer 1

y = kx

given y = 8 and x= 2

8 = 2k

k = 8/2

k= 4

y = 6*4= 24

Answer 2

If x varies directly with k then x times some constant k will equal y

so (x)(k) = y

First solve for k. 2K=8. So k=4

So when x=6 xz= 6 x 4 = 24. 24 is the answer