find the slope, if it exists,of the line containing the pair of the points.

(-2,-11) and (-20,-15).

I came up with (-2,-9)is this correct?

2 answers

slope is the change in y divided by the change in x.

Slope = (-11- -15)/(-2- -20)

Do the math and simplify and you wil have the slope.
I thought the formula i was suppose to use is y2-y1
x2-x1
which equals to
(-15,- -11)and(-20,- -2)
Then I got -4/-18 which equals to
-2/-9