Question

What is the slope of line l? (-7,4) (7,-2)

Answer 1

`(\stackrel{x_1}{-7}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{7}~,~\stackrel{y_2}{-2}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-2}-\stackrel{y1}{4}}}{\underset{\textit{\large run}} {\underset{x_2}{7}-\underset{x_1}{(-7)}}} \implies \cfrac{ -6 }{7 +7} \implies \cfrac{ -6 }{ 14 } \implies -\cfrac{3}{7}`