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

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Answer 1 · 2016-02-17T18:30:39

The slope $= -7$

The points are :
$(-1,-1) = color(blue)(x_1,y_1)$

$(-3,13) = color(blue)(x_2,y_2)$

The slope is calculated using formula:

$(y_2-y_1)/(x_2-x_1)$

$= (13 - (-1))/(-3- (-1))$

$= (13 +1 )/(-3+ 1)$

$= (14 )/(-2)$

$= -7$

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