I need help with this worksheet. Click link and go to exploration3-6b:

http://www.ihs.issaquah.wednet.edu/T...alc_EXP_03.pdf

I mainly need help with #2. and on. Thanks!

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- May 12th 2011, 02:43 PMindiaystephensSinusoidal equations.
I need help with this worksheet. Click link and go to exploration

**3-6b**:

http://www.ihs.issaquah.wednet.edu/T...alc_EXP_03.pdf

I mainly need help with #2. and on. Thanks! - May 13th 2011, 09:06 AMtopsquark
Thread re-opened.

-Dan - May 14th 2011, 06:47 PMrtblue
The question is essentially asking what is the equation of a cosine graph with a period of 12 degrees.

The general form of a cosine graph is as follows:

y=Acos(Bx+C)+D

The formula for the period is (360/B) or (2pi/B), the former for degrees, the latter for radians.

So we have 360/B=12

B=30, and I believe this is the horizontal dilation factor.

So we have: f(x)=cos(30x)

P.S. My latex keeps on saying: "LaTeX ERROR: Unknown error", so I couldn't use latex for any of the math. Any ideas as to why this is happening?