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.

Learn how to find the equation of a circle and use the discriminant to prove for tangency in intersections for Higher Maths.