# How do you graph y = 1/2 cos 2x ?

Mar 27, 2018

see below...

#### Explanation:

first we need to make the table of values.

$x | y$

$0 | \frac{1}{2}$

$\frac{\pi}{4} | 0$

$\frac{\pi}{2} | - \frac{1}{2}$

$\frac{3 \pi}{2} | 0$

$\pi | \frac{1}{2}$

Now we can plot the graph.