Question

Which linear equation shows a proportional relationship?

y = 2x + 1
y equals one half times x minus 5
y equals negative one half times x
y = −2

Answer 1

As, we know the constant of proportionality standard form is

y= kx

where k is constant of proportionality

So, from the given options the relation of constant of proportionality shown by

y= 3/4 x

where k = 3/4.

Explanation:

Answer 2

y=2x+1 and y=-2

Explanation: