Wood Graph

Wood Graph

Can someone help me graph this sine wave?

I'm using a graphing calculator to try and figure out how to get a wavy curve I want in a piece of wood because I remember too much from math class. I know the general shape of the curve would be y = sin(x) ..... I want it to curve like this though:

It starts at 0,0 (x,y) then reaches its apex at 7.5,2. It crosses the y-axis again at 15,0. Hits rock bottom at 22.5,-2. Then hits the y-axis once more at 30,0. Then it just repeats.

Can someone tell me how to graph this?

Since the highest your wave goes is 2, its amplitude is 2. And since after 30, your wave repeats, its wavelength is 30.

y=2sin(2 * pi * x /30)
or y=2sin(pi * x / 15)

Nice to see a real-world application to this stuff that I know. Good luck with the wood

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Wood Graph

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