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?

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

To find the slope of a line containing two given points, you can use the formula:

slope = (y2 - y1) / (x2 - x1)

Let's apply this formula to the given points (-2, -11) and (-20, -15):

slope = (-15 - (-11)) / (-20 - (-2))
= (-15 + 11) / (-20 + 2)
= -4 / -18
= 2/9

So, the slope of the line containing the points (-2, -11) and (-20, -15) is 2/9.

The value you mentioned, (-2, -9), does not seem to be related to the slope calculation. It is important to double-check your work and ensure that the correct points are used in the formula.