Which is a proportional relationship? a. x + y=3 b. y= 3x^2 c. y= 4x - 1 d. y= 12.5x

If x and y are proportional, then the quotient y and x is constant.

The equation of a Proportional Relationship:

Therefore your answer is

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )