Here are four equations connecting x and y.
k is a constant.
Match each equation to one of the statements A, B, C or D.
Equation 1 Equation 2 Equation 3 Equation 4
y=kx²
k
y =
y =
y = kx
A y is directly proportional to x
By is directly proportional to x
Cy is inversely proportional to x
Dy is inversely proportional to x