y = c*x3 where c is the constant of proportionality.
Y = K (z/x)
4x= y
y = 10x
y = 3x y = 3*19 = 57
y=x^2 * k k=constant of proportionality OR y/x^2 = k
Y = K (z/x)
Find an equation of variation where y varies directly as x. One pair of values is y = 80 when x = 40
It is f(x) = 6*x
when x increases y increases.. y=kx
y = 10x
4x= y
one of the measurements to the third power
Z = K Y / X 'K' can be any constant number.
57
40
y = -5
y = 8