Slope of a Line: Dynamic & Modifiable Illustration
This is a adapted copy of Tim Brezinski's work at
https://www.geogebra.org/m/msvcQCZ4
Updated 20 Jun 2021. Animation sequence updated : Show a right angled triangle first, then the value of rise , finally, the run value.
Updated 21 Jan 2022. Modified to show axes without numbers shown. Allowed both points to be dragged instead of one, and coordinates of both points shown. Calculations for rise and run expanded to show how the coordinates are used to find rise and run.
This modification is to enable transition from intuitive feel of gradient to more computational practice
