Question

Which equation represents a direct linear variation?

A.y = 1/3x
B.y = 1/x
C.y = x - 3
D.y =x2

I think it's y = x - 3

Answer 1

Wait no it's A.

Answer 2

it cannot be D (quadratic), cannot be C, cannot be B (you get a discontinuous graph)

Answer 3

it has to be A
@monomi

Answer 4

Yeah, I thought so. Thank you for the help!