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) m=y2−y1x2−x1 where
(x_1 , y_1 ) = (0 , - 1 ) , (x_2 , y_2 ) =( - 1 , 1 ) (x1,y1)=(0,−1),(x2,y2)=(−1,1) ( substitute values into formula )
m =( 1 - (-1 ))/(-1 - 0 ) = 2/-1 = - 2 m=1−(−1)−1−0=2−1=−2
