Equations of perpendicular lines

Download the PowerPoint here (thanks to MrBriggs on Twitter for pointing out that I forgot to add this link in!)

This lesson went well, actually.

Work out the gradients and try and notice something.

Then there’s a little bit on making sure we can properly identify when something is a negative reciprocal.

Obviously, an example problem pair.

Then some nice questions.

Quite pleased with this one. Enjoy.

via GIPHY

Next lesson : I’m going to re-do my fractions slides and add a load of stuff in.

Richard