Just about every introductory physics lab should have some type of graph. Skip to main content. Open Navigation Menu. ... The slope of the linear function that fits the data actually means something.

With a graph, you can show a functional relationship between two quantities. If that relationship is linear then you can find the slope of the best fit line and this slope probably means something.

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.