Question

Give the following for the function: y=2+cos(5x+3.14

Amplitude:
Period:
Phase Shift:

Answer 1

amplitude = 1
period is when 5 x = 2 pi
so when x = (2/5) pi
phase shift is 3.14 radians or about pi

Answer 2

I must respectfully disagree with Damon's answer for the phase shift

changing it to
y = 2 + cos 5(x + 3.14/5)
we can see that the phase shift is 3.14/5 to the left
or π/5 to the left