Question

Which equation is an example of a direct variation?

A.) Y = 2/3 xz
B.) 2 xy = 12
C.) Y = 8/x
D.) 2/3 x = y

Answer 1

D

Explanation:

D is the sole equation that demonstrates direct variation, so long as you meant y = (2/3)x. This has the form y = kx, where k is the constant of proportionality.