# How do you determine the amplitude, period, and phase shift of the function #y = 1/2 sin(x + pi)#?

##### 1 Answer

Let's start with the more basic form:

which has:

an amplitude of

a period of

and a phase shift of

The constant

Shifts the values of

has an amplitude of

and

a phase shift of

There is no change in the period; so the period remains

(A change in period would be the result of a value

which would cause