# How do you find the period, amplitude and sketch #y=2+1/10cos60pix#?

##### 1 Answer

Nov 19, 2017

See below.

#### Explanation:

Period:

The period of

Multiplying

So period is

The amplitude of

Multiply by

So

This is increased by 2, because the function has had 2 added to it, which translates the curve in the positive y direction by 2 units.

So amplitude is:

The stretch is a compression in this case by a factor of

Period is

Amplitude is

Stretch is

Plots: