Question 14 - A-Level Maths

Exam Board	OCR MEI
Module	C2 (Core Mathematics 2)
Topic	Curve Sketching
Type	Multiple transformation descriptions

On the same axes, sketch the graphs of \(y = \cos x\) and \(y = \cos 2 x\) for values of \(x\) from 0 to \(2 \pi\).
Describe the transformation which maps the graph of \(y = \cos x\) onto the graph of \(y = 3 \cos x\).