# Graphing Sine problem

• July 30th 2008, 12:28 PM
Cyberman86
Graphing Sine problem
F(x) = -2sin(pi x - pi/2) +1 for [-2,-2]

Amplitude: |-2|=|2|= 2

Period: 2pi/B = 2pi/pi = 2

Phase Shift: C/B =(pi/2)(1/pi) = 1/2

I got this wrong in my Quiz and also i don't know how to draw graphs here in the forum. and i would like to see how this graph looks like please.
• July 30th 2008, 04:30 PM
Chris L T521
http://img.photobucket.com/albums/v4...sLT521/sin.jpg

You're pretty close, but $\varphi=-\tfrac{1}{2}$ <---Phase Shift.

--Chris
• July 30th 2008, 05:05 PM
Cyberman86
Thanks a lot you are the best in this forum, you really know how to explain, and show work.(Rofl)
• July 30th 2008, 05:08 PM
Chris L T521
Quote:

Originally Posted by Cyberman86
Thanks a lot you are the best in this forum, you really know how to explain, and show work.(Rofl)

I'm not sure I can say I'm the best. There are others better than me.

Thanks for the compliment, though! (Cool)

--Chris