# How do you find the amplitude, period, vertical and phase shift and graph #y=3-1/2costheta#?

##### 1 Answer

Jun 1, 2017

Amplitude:

Period:

Vertical shift:

Phase shift:

#### Explanation:

Given:

Begin by observing that multiplication of a sinusoid by negative is a phase shift of

Using the general from,

The phase shift

In the given equation

Period

The amplitude is

Vertical shift