# How do you determine the amplitude and period for #y=-2sin x#?

##### 1 Answer

Mar 8, 2018

2, and

#### Explanation:

Although this may be a bit too late I'll explain.

The formula for graphing trigonometric functions is

The period is always equal to (for sin and cos)

b is the value that comes after sin, but before x, in this case, there is no b value so we assume it to equal 1. If b=1 then we plug it in