# What is the slope of a line that with the points (0, -1) (-1, 1)?

##### 1 Answer

Jan 19, 2016

m = - 2

#### Explanation:

To find the slope of a line joining 2 points use the gradient formula.

# m = ( y_2 - y_1 )/(x_2 - x_1) # where

# (x_1 , y_1 ) = (0 , - 1 ) , (x_2 , y_2 ) =( - 1 , 1 ) # ( substitute values into formula )

# m =( 1 - (-1 ))/(-1 - 0 ) = 2/-1 = - 2 #