What is the slope of the line passing through the following points: $(- 1, - 1), (- 3, 13)$ $(-1,-1) , (-3,13)$ ?

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Answer 1 · 2016-02-17T18:30:39

The slope $= - 7$ $= -7$

The points are :
$(- 1, - 1) = x_{1}, y_{1}$ $(-1,-1) = color(blue)(x_1,y_1)$

$(- 3, 13) = x_{2}, y_{2}$ $(-3,13) = color(blue)(x_2,y_2)$

The slope is calculated using formula:

$\frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ $(y_2-y_1)/(x_2-x_1)$

$= \frac{13 - (- 1)}{- 3 - (- 1)}$ $= (13 - (-1))/(-3- (-1))$

$= \frac{13 + 1}{- 3 + 1}$ $= (13 +1 )/(-3+ 1)$

$= \frac{14}{- 2}$ $= (14 )/(-2)$

$= - 7$ $= -7$

What is the slope of the line passing through the following points: (-1,-1) , (-3,13)(−1,−1),(−3,13) (-1,-1) , (-3,13)?