Question

It is given that y varies directly as x. If y = 10 when x = 3 determine the constant of variation. It is given that y varies directly as x. If y = 10 when x = 3 determine the constant of variation. It is given that y varies directly as x. If y = 10 when x = 3 determine the constant of variation.v

Answer 1

y varies directly as x means
y=kx
k is the constant of variation

10=k3
10=3k
divie both sides by 3
10/3=k

y=(10/3)x

the constant of variation is 10/3