EXPLANATION
We can get the slope of the line that passes through the points by plugging in the numbers into the expression as shown as follows:
[tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{-1-(-2)}{-4-(-1)}=\frac{1}{-3}=-\frac{1}{3}[/tex]
In conclusion, the slope is -1/3
