The best way to find the slope is "rise over run". Plot the two points on a graph, and you'll get a diagonal line. Start at the lower point, and count STRAIGHT up to the horizontal grid line where the top point is located. This number of spaces is the "rise"Now, count the number of spaces it takes to get to the top point. (left or right) This is the "run". If you have moved to the left, the "run" number should be negative, but if you moved to the right, the "run" should be positive.Then, put the "rise" over the "run", as a fraction. This is the slope, a.k.a. the "m" in y=mx+b. Hope this helps. It would be easier if I could show you on paper.
