Question

Look at the following function:


x y
−3 −8
−2 −6
−1 −4
0 0


Matt said that the function is linear.

Justine said that the function is nonlinear.

Which of the following explains who is correct?
Matt, because for every 1-unit increase in x, there is an increase in y by 2

Matt, because for every 2-unit increase in x, there is an increase in y by 1

Justine, because the point (−3, −8) does not lie on the straight line that contains the other points

Justine, because the point (0, 0) does not lie on the straight line that contains the other points

Answer 1

@grex10