# What is the slope of the line passing through  (9,9);(-11,7) ?

Jan 1, 2016

The formula for the slope of a line is m = $\frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$

#### Explanation:

m = $\frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$

m = $\frac{7 - 9}{- 11 - 9}$

m = $- \frac{2}{-} 20$

m = $- \frac{1}{10}$