Question

Does y=0.5x-2 represent a proportional relationship?

Answer 1

Answer::

An equation has a proportional relationship if it can be written in the form y=kx where k is the constant of proportionality.

a.y=0.5x−2a.y=0.5x−2 does not have a proportional relationship since it has the term −2 on the right side.

b.y=1,000xb.y=1,000x has a proportional relationship with a constant of proportionality of 1,000.

c.y=x+1c.y=x+1 does not have a proportional relationship since it has the term 1 on the right side.