Points of intersection. Activity.

This is a really nice powerpoint which covers points of intersection of straight line graphs and investigating graphs of the form y = mx. Students have to find points of intersection first using graphs to help and then this scaffolding is removed, they are then asked to plot some different graphs and then return to some more difficult examples of finding intersection points. This is a great outline of a lesson which can be really easily adapted to suit your class. Thank you for sharing.