Question

y=(3/2) cos(2x-pi)
I need to graph this over two intervals. Where do I start?

Answer 1

can you graph cos(x) ?

Answer 2

if you can, you only need to shift it and stretch it

Answer 3

let me know if you can

Answer 4

... ? I'll just tell you the steps then

Answer 5

the amplitude is 3/2, so the highest y will be 3/2 and the lowest will be -3/2

Answer 6

cos(2(x-pi/2)) is the input, so the period is pi and the phase shift is pi/2

Answer 7

that's it :)