state the amplitude, period, frequency, phase shift and vertical shift of each function, Then graph two periods of the function of:

Question

1) y=3 sin(x-pie/4)
2) y=0.25cosx+3

Answer 1

graphed by Wolfram

http://www.wolframalpha.com/input/?i=plot+y%3D3+sin%28x-π%2F4%29+%2C+y%3D0.25cos%28x%29+%2B3

you should be able to answer all your questions by looking at the graphs