Question

Which linear function shows a direct variation?

A. y = 2x + 5
B. y = -3x
C. y = 0.5x
D. y = 4x - 7

Answer 1

The linear function that shows direct variation is y = 0.5x.

Step-by-step explanation:

A linear function shows direct variation when the equation is in the form y = kx, where k is the constant of variation. In this case, the only function that represents direct variation is option C. It is in the form y = 0.5x, where the constant of variation is 0.5.