Period and Amplitude of a function.

[Professor Awesome]

Hi, I need to know how to find the period and amplitude of a function given only the equation, and not graphing. I missed a few days of school, and I never got taught, and I can't ask the teacher for help, so I'm posting here. I don't know at all how to find these, and if they are all different for sin, cos, and tan. You can just make up some functions if you have need to, and use them as examples. I don't want you guys to think I'm just trying to get free answers

 

[daon]

Professor, eh?

A*TRIGFUNC(Bx+C) + D

Original Angle = x
New Angle = Bx+C
Aplitude = A
Period = [OldPeriod]/B. Note if B<1 it is widend, if B>1 it is compressed
Phase Shift = -C/B
Frequency = 1/Period
Vertical Shift = D