Question 27761
It would probably help you if you knew the formula for the slope, m.

Slope is Rise over Run, or in algebrese:

{{{m = (y2-y1)/(x2-x1)}}} Where: (-4, -2) is (x1, y1) and (-1, -1) is (x2, y2)

So try plugging in the numbers and see what you get.