# What is the slope of the line passing through the following points:  (2,-6); (1,3) ?

##### 1 Answer
Mar 5, 2016

The slope $= - 9$

#### Explanation:

The coordinates are:
(2,-6) = color(blue)(x_1,y_1
(1,3) = color(blue)(x_2,y_2

The slope is calculated using formula:

slope $= \frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$
(change in y axis divided by change in x axis)

=(3-(-6))/(1-2

=(3 +6)/(-1

$= \frac{9}{- 1}$

The slope $= - 9$