Answer:

Explanation:
If you use the formula
with x1 being 7, y1 being 0, -5 being x2 and 5 being y2, then you can subtract. 5(y2) minus 0(y1) is 5, and -5(x2) minus 7(x1) is -12. The formula would look like this:
.
(tip: you need to do rise over run, aka y over x, shown as
or
)
I hope I helped you answer your question, and helped better understand it as well