# What is the slope of the line passing through the following points: (-1, 1) , (-3,0) ?

Mar 1, 2016

The slope is $= \frac{1}{2}$

#### Explanation:

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

(-3,0) = color(blue)(x_2,y_2

The slope is calculated using formula:

slope =color(green)( (y_2-y_1) / (x_2 - x_1)
(ie; change in $y$ axis divided by change in $x$ axis)

$= \frac{0 - 1}{- 3 - \left(- 1\right)}$

$= \frac{- 1}{- 3 + 1}$

$= \frac{- 1}{- 2}$

$= \frac{1}{2}$