Question

Find the slope (-2,-1) and (-4,-7)

Answer 1

$\bf \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &&(~{{ -2}} &,&{{ -1}}~) % (c,d) &&(~{{ -4}} &,&{{ -7}}~) \end{array} \\\\\\ % slope = m slope = {{ m}}\implies \cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{-7-(-1)}{-4-(-2)}\implies \cfrac{-7+1}{-4+2} \\\\\\ \cfrac{-6}{-2}\implies 3$