## Elementary Geometry for College Students (7th Edition)

$\frac{4}{3}$
(-2,-3) and (-5,-7) x1=-2, y1=-3,x2=-5,y2=-7 Using slope formula m = $\frac{y2-y1}{x2-x1}$ m= $\frac{-7-(-3)}{-5-(-2)}$ = $\frac{-4}{-3}$ =$\frac{4}{3}$