3 years ago

Find slope of the line through each pair of points (19, -16), (-7, -15)

1 answer:

5 0

$\bf (\stackrel{x_1}{19}~,~\stackrel{y_1}{-16})\qquad (\stackrel{x_2}{-7}~,~\stackrel{y_2}{-15}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-15}-\stackrel{y1}{(-16)}}}{\underset{run} {\underset{x_2}{-7}-\underset{x_1}{19}}}\implies \cfrac{-15+16}{-26}\implies -\cfrac{1}{26}$

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