How do you find the slope given (-2,-1) and (2,1)?
1 Answer
Jan 17, 2016
m
# = 1/2 #
Explanation:
To find the gradient (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 ) , (x_2 , y_2 ) # are 2 points on the line.let
# ( x_1 , y_1 ) = (-2 , - 1 ) , (x_2 , y_2 ) = (2 , 1 ) #
#rArr m = (1 - (-1))/(2 - (-2)) = 2/4 = 1/2 #
