Question

find the amplitude, period, phase shift and graph.
y=3cos(pi X - 2) + 5

Answer 1

so far i got amp = 3, period = 2 and phase shift = 2/pi

Answer 2

i cant seem to graph it because my problem is setting up the tick marks. my tick mark is 1/2, 1, 3/2, 2 but phase shift is 2/pi what do i do?

Answer 3

http://www.wolframalpha.com/input/?i=y%3D3cos%28pi+X+-+2%29+%2B+5

Answer 4

i need to draw the tick marks on the graph by hand