What is the slope of the line passing through the points (-1, 7) and (4, -1)?

1 answer:

4 0

$\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{7})\qquad
(\stackrel{x_2}{4}~,~\stackrel{y_2}{-1})
\\\\\\
slope = m\implies
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-7}{4-(-1)}\implies \cfrac{-1-7}{4+1}\implies \cfrac{-8}{5}$

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