Question

Which equation represents a proportional relationship between the x and y values? A) y = 2 B) y = 1 4 x + 1 C) y = x − 4 D) y = −2x

Answer 1

D

Explanation:

The standard equation representing a proportional relationship is

y = kx ← k is the constant of proportionality

The only equation fitting this description is

y = - 2x → D