Question

MEDAL!!! PLEASE HELP!! sketch two complete cycles of the graph, then answer the questions about the function. (d)How is this graph related to its parent graph of y=sinx and y=cosx

Answer 1

y=3cos(x/2) @srossd

Answer 2

I opened a new question to give you another medal if you can help

Answer 3

same thing as before

Answer 4

So, this time the amplitude is 3, and the period gets doubled instead of halved (so it's a period of 4pi). This time, sine has a phase shift of 90 degrees, and cosine has no phase shift.

Answer 5

is that my explanation for the parent graphs? the period os doubled compared to the parent graphs?

Answer 6

Right, and the amplitude is tripled. And don't forget the phase shift for sine.

Answer 7

what would my 2 cycles look like? I know the graph but can you tell me the range of the two cycles?

Answer 8

Well, you need to cover the period twice, so you'll probably go from -4pi to 4pi.

Answer 9

Got it thanks! I'll tag again if I need more help

Answer 10

Sure