Respuesta :

gmany
Read the coordinates of points on the line:

(-3, 1); (0, -1)

The formula of the slope:

[tex](x_1;\ y_1);\ (x_2;\ y_2)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
substitute:
[tex]m=\dfrac{-1-1}{0-(-3)}=\dfrac{-2}{3}=-\dfrac{2}{3}[/tex]