### Scribe

Today in class, we discussed about the graphing of trig. functions, more specifically, sine and cosine functions. There were examples on the board that we copied and tried to answer. The basic form for a sin function looks like this:

The one problem with graphing the function is

If you know B, and want to know the period just use the formula below.

When graphing the sine or cosine function, remember

That's about it.

Next scribe is ... Prince.

**f(x)= A (sin or cos) B(x-C)+D****A**represents the amplitude of the function.**B**helps tell you the period of the curve.**C**is the phase shift (moves the function left or right).**D**is the vertical shift and is the sinusoidal axis.The one problem with graphing the function is

**B**because you have to solve for the period.**Period = 2π/B**If you know B, and want to know the period just use the formula below.

**B = 2π/P**When graphing the sine or cosine function, remember

**DABC**. The order of the letters when graphing are**D**,**A**,**B**, and**C**, hence**DABC**. How you label the x-axis is important because you can label it π/2, π, etc. or you can label it 1, 2, 3, etc. No matter what you need at least four increments along the x-axis.That's about it.

Next scribe is ... Prince.

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