Just to correct your paper, the options are not in slope-intercept form, but in *point-slope* form.
Anyways, remember that the slope formula is [tex] \frac{y_2-y_1}{x_2-x_1} [/tex] . Since we have the slope and one of the points, our equation is going to be [tex] \frac{y-2}{x+1}=-3 [/tex]
For this, just multiply both sides by x+1 and your answer will be [tex] y-2=-3(x+1) [/tex], or B.
