CPM Homework Help : PC3 Problem 2-99

Graph two complete cycles of each of the following functions.

$f(x)=\cos(x)-2$
Hint (a):
This is a graph of the cosine function shifted down $2$ units.

$g(x)=\sin\left(x-\frac{\pi}{2}\right)$
Hint (b):
This is a graph of the sine function shifted right $\frac{\pi}{2}$ units.