Question

Which equation does not represent a proportional relationship?

Answer 1

Answer:

The equation $y=5x-7$ doesn't represent a proportional relationship.

Step-by-step explanation:

• Proportional equations are those linear equations($y=kx+b$) where the value of b≠0, i.e. the line passes through origin.

• $y=5x-7$ shows a equation that potrays linear relationship between the variables x and y. This type of equation is an example of non-proportional relationship.

• The remaining three equations are in the form of $y=kx$ where k is the constant of proportionality. This type of equations represent proportional relationship.