Find the variation constaant and an equation of variation where Y varies directly as X and Y = 72 hen X = 8
The variation constant is K = ?
The equation of variation is Y = ?
I think that K = 9 but not sure
I don't have a clue about the rest.
"Y varies directly as X" ----> y = kx
but we are given x=8, y = 72
72 = k(8)
k = 9, so
y = 9x
Thank you, I thought I was on the right track but wasn't sure.
so 9 is our constant...