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.

First, find the perpendicular gradient and substitute this into the equation for all straight lines, \(y = mx + c\). If \(y = 3x - 1\) the gradient of the graph is 3.

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