Are there any sites that can teach me about the phase shift, amplitude, how to graph certain equations, etc. for periodic functions because I have a test tomorrow, and I am really confused?
2006-07-13 12:24:12 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Try this site. It has video lessons that show a guy actually working some of the types of problems you are asking about.
http://www.mathtv.com/Trig/pages/toc.htm
Try Googling "trig help" and I bet you will find some more useful links.
In general, phase shift is another name for horizontal translation. Amplitude is the distance from the middle of the function to the top or bottom. Here are some formulas:
If you have f(x) = Asin(Bx + C) + D
The amplitude is |A|
The period is 2pi/B
The phase shift is -C/B
The vertical shift is D
2006-07-13 12:32:09 · answer #1 · answered by mathsmart 4 · 1⤊ 0⤋
Phase shif is how far up/down or left/right the graph is shifted.
Amplitude is the maximum height/depth the graph goes from the middle (so take the the absolute values of the max and min values add them and divide by 2)
All periodic functions are either sine, cosine or tangent. Start off with the basic graphs of those, and apply phase shifts (change in x) amplitude changes (change in coefficient).
2006-07-13 19:31:31 · answer #2 · answered by darcy_t2e 3 · 0⤊ 0⤋
If you really are/could be an underwear model, go ahead and flunk out. This will never effect your life in anyway.
2006-07-13 19:32:57 · answer #3 · answered by Meredith L 4 · 0⤊ 0⤋
why a test tomorrow it is the middle of july
2006-07-13 19:28:28 · answer #4 · answered by liz 2 · 0⤊ 0⤋
You waited until now to ask this question? Then you are not studying enough.
2006-07-13 19:28:38 · answer #5 · answered by sacredmud 4 · 0⤊ 0⤋