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

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Answer 1 · 2016-05-28T08:09:10

$m = - \frac{8}{21}$ $m=-8/21$

$P (1) = (10, - 1)$ $P(1)=(10,-1)$
$x_{1} = 10$ $x_1=10$
$y_{1} = - 1$ $y_1=-1$

$P (2) = (- 11, 7)$ $P(2)=(-11,7)$
$x_{2} = - 11$ $x_2=-11$
$y_{2} = 7$ $y_2=7$

$S l o p e : m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ $"Slope: m=(y_2-y_1)/(x_2-x_1)$

$m = \frac{7 + 1}{- 11 - 10}$ $m=(7+1)/(-11-10)$

$m = - \frac{8}{21}$ $m=-8/21$

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