Question

Look at this function:

(Picture in comments)

Matt said that the function is linear.

Justine said that the function is nonlinear.

Which of the following explains who is correct?

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

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

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

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

Answer 1

x y
neg.3 neg.8
neg.2 neg.6
neg.3 neg.4
0 0