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.

Revise how to work out the gradient of a straight line in maths and what formula to use to calculate the value change in this Bitesize guide.

The capital allocation line (CAL) is used in finance to illustrate the risk-return trade-off of investment portfolios by displaying the tradeoff of risk-free and risky assets.