# How do you graph #y = cos2x#?

##### 1 Answer

Jul 1, 2015

#### Answer:

This is a cossine function that gives you a graph similar to the "normal" cosine with amplitude

#### Explanation:

This is a cosine function with amplitude equal to

This value of the period tells you that this is not the normal cosine but it is "squeezed" to fit an entire oscillation between

Graphically:

graph{cos(2x) [-10, 10, -5, 5]}

A "normal" cosine would look as:

graph{cos(x) [-10, 10, -5, 5]}