How to Find the Slope of a Line on an Excel Graph. In math and statistics, you may occasionally need to calculate the slope of a line generated by coordinates in the (x,y) format.

They slope in opposite directions, one has a positive gradient and the other has a negative gradient. The product of their gradients is -1, which means their gradients multiply to -1.

In order to work with gradients and straight lines successfully, a good understanding of coordinates and linear graphs is needed. The gradient close gradientA measure of the slope of a line. The ...