Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Paul Glaister CBE does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Chris Brignell is Deputy Director of the Observatory for Mathematical Education, which is supported by a founding grant from XTX Markets Ltd. Stephen Lee is a Senior Research Fellow at the Observatory ...