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.
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