# How do you find the slope of the line through the following pairs of points (3, -7) and (12, -7)?

May 28, 2018

$\text{slope } = 0$

#### Explanation:

$\text{calculate the slope m using the "color(blue)"gradient formula}$

•color(white)(x)m=(y_2-y_1)/(x_2-x_1)

$\text{let "(x_1,y_1)=(3,-7)" and } \left({x}_{2} , {y}_{2}\right) = \left(12 , - 7\right)$

$m = \frac{- 7 - \left(- 7\right)}{12 - 3} = \frac{0}{9} = 0$