How do you find the amplitude, period, and shift for #y =3cos(6x+8pi)#?
See solution below.
In a function of the form
The phase shift can be found by setting the numbers in parentheses to 0.
Therefore, the phase shift is
The formula for period in sine and cosine functions is
In your equation, we're going to have to factor b out.
Here is the graph of your function:
- Identify the period, phase shift and amplitude of
#y = -4cos(2x - pi/2)#. Graph if possible.