[tex]\bf (\stackrel{x_1}{60}~,~\stackrel{y_1}{28})\qquad (\stackrel{x_2}{54}~,~\stackrel{y_2}{32}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{32-28}{54-60}\implies \cfrac{4}{-6}\implies -\cfrac{2}{3}[/tex]
