What is the slope of the line passing through the following points: #(1,-2); (-2,-1)#?

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Answer 1 · 2016-04-15T00:23:00

#m = -1/3#

The formula for the slope of a line based upon two coordinate points is

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

For the coordinate points #(1,-2) and (-2,-1)#
#x_1 = 1#
#x_2 = -2#
#y_1 = -2#
#y_2 = -1#

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

#m = 1/-3#

The slope is

#m = -1/3#