# What is the amplitude of a sinusoidal graph?

##### 1 Answer

Jun 29, 2015

It is one-half of the difference between the maximum and minimum values of

#### Explanation:

Example:

The amplitude is

Note that the amplitude is the absolute value of the coefficient of

Here is the graph of the example:

graph{y=-7sin(3x-2) + 4 [-20.15, 20.4, -7.78, 12.5]}