Question

Which equation below does not show a

proportional relationship between x and y?
F. y= - 1/25x
H. y= 7/2x
G. y= -x
J. y = x + 1
helppp.

Answer 1

J. y = x + 1

Explanation:

A proportional relationship between x and y is where x and y can be written as a ratio - in other words, y can be written as kx, where k is some constant number.

Look through the answer choices:

F) y= - 1/25x

This works because here, k = -1/25

G) y= -x

This works because here, k = -1

H) y= 7/2x

This works because here, k = 7/2

J) y = x + 1

This doesn't work because even though we see that the coefficient of x is 1, there is another constant term that is added to the x, which means that this is NOT proportional.

Hope this helps!