find slope: (-18, -12) (-19, -16)

Question

I have tied for the last 4 problems on my check point, and they are all wrong, I can , however correct them if I can figure out how to do these kind of math problems. Can  someone please help a 52 year old student  understand how to do this , so she don't fail Algebra.

Answer 1

slope = rise over run

Basically that means a fraction with change in y on top and the change in x on bottom.

The formula is:  slope = (y2 - y1) / (x2 - x1)

slope = (-16 - -12) / (-19 - -18)

slope = (-16 + 12) / (-19 + 18)

slope = (-4) / (-1)

slope = 4