To know if the classmate is right we can find the slope of the function with two different points. In the graph I can see the points (-4,-3) and (0,2)
Now we can use the slope equation:
[tex]\frac{y_{2-}y_1}{x_{2-}x_1}[/tex]
and replace the values for our coordinates
[tex]\frac{2-(-3)}{0-(-4)}=\frac{5}{4}[/tex]
So the answer is D) the slope is 5/4
