Which linear equation represents a proportional relationship?

A)y = x + 2B)y = 3x + 0.2C)y = −0.3xD)y = −3x +

Correct option:

C) y = −0.3x

A proportional relationship between two variables occurs when their ratios are equivalent. In other words, we can write one variable as the product of a constan value and the other variable, so:

So this is the equation of a line that passes through the origin. By comparing this equation with our options, we see that the only option that meets this requirement is option c)

what list? there is not