# How do you graph #y=3 cos pi x#?

##### 1 Answer

Jun 4, 2016

The graph is a series of periodic waves, with period 2 and amplitude 3. See explanation for Table {{x, y)}...,

#### Explanation:

The graph is a cosine wave-form, with period 2 and amplitude 3.

See the two graphs for visual effect.

Note that

In one period

graph{y=3 cos(4.1416x)}

Graph for one period,

graph{(y-3 cos(3.1416x))(x)(x-2)(y^2-9.4)=0[0 2]}}