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January 28, 2015

January 28, 2015

Posted by **Sam** on Tuesday, October 29, 2013 at 6:24pm.

prntscr. com/20mkyo

The link is to a screenshot of the graph. (without spaces)

I'm unsure of how to solve - I tried it and got y = 2 cos (2/3x + 5pi/2) + 1 but it is wrong....help would be appreciated, thanks.

- Graphing - Trigonometry -
**Steve**, Tuesday, October 29, 2013 at 8:06pmmax-min = 4, so a=2

center of wave is at y=1, so d=1

period is 3pi, so b=2/3

wave is shifted right by 3pi/2, so we have 2/3 (x-3pi/2) = 2/3 x - pi

y = 2cos(2/3 x - pi) + 1

- Graphing - Trigonometry -
**Sam**, Wednesday, October 30, 2013 at 9:32amthanks a lot man :)

- Graphing - Trigonometry -
**Sam**, Wednesday, October 30, 2013 at 9:33amthanks a lot steve you're awesome and helping me a lot on these problems I've tried working on them and when I couldn't you helped me so thanks

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