Question

Please I ask for your help so that my son can understand this homework

Answer 1

To find the slope we have to use two points: (0,0) and (-1,1).

Then, we use the point-slope formula.

$\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ m=\frac{1-0}{-1-0}=-1 \end{gathered}$

Hence, the slope is -1.