What is the slope of the line passing through $(10,-1);(-11,7)$ ?

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Answer 1 · 2016-05-28T08:09:10

$m=-8/21$

$P(1)=(10,-1)$
$x_1=10$
$y_1=-1$

$P(2)=(-11,7)$
$x_2=-11$
$y_2=7$

$"Slope: m=(y_2-y_1)/(x_2-x_1)$

$m=(7+1)/(-11-10)$

$m=-8/21$

What is the slope of the line passing through (10,-1);(-11,7) (10,-1);(-11,7) ?