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

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Answer 1 · 2018-04-08T00:01:41

The slope is #2#.

Here's how I did it:

To find the slope of a line from two points, we use the formula #("change in y")/("change in x")# or #(y_2-y_1)/(x_2-x_1)#.

So let's plug in those two points we have (pay attention to the negative signs!):
#(1-(-1))/(-1-(-2))#

And now let's simplify:
#2/(-1+2)#

#2/1#

#2#

The slope is #2#.