How to Find Slope From a Graph? Finding slope from a graph. The slope of a line is the ratio of increase to execution. Hence, here are the steps to find the slope of the chart: Step 1: Select any two random points on the graph of the line (preferably with integer coordinates). Step 2: Label them as \ (A\) and \ (B\) (in any order). Step 3: Calculate "rise" from \ (A\) to ...