The slope-point formula:

We have (3, -5) and (-8, 4).
Substitute:

Answer:
2
Number line.
We start at -6 or -8.
If we start from -6, we will be going __ spaces to the left until we get to -8.
Or start from -8 and go __ spaces to the right until you get to -6.
Then count the spaces.
You'll get 2.
I believe it is D if i’m correct