Find 2 points on the graph where the line crosses completely with the graph (like x1 y-1). Once you have the 2 points count how many squares between your lowest point and your highest point. That’s your rise. Now count how many squares between your lowest and your highest but on the x axis (left-right). That’s your run. Put your rise over your run in a fraction like 1/2. Simply the fraction to the lowest numbers to find the slope.
