Question

Which equation(s) represents a proportional relationship?

A) y=7x^2 B) y=2+3x
C) y=1/2x D) y= 5-x

show work​

Answer 1

A and C are proportional relationships.

Explanation:

Recall that a "proportional relationship" has no constant term. Thus, we eliminate Answers B and D immediately.

Answer A represents a proportional relationship: y varies directly with the square of x.

Answer C also represents a proportional relationship: y varies directly with x.