Look at this 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