Review the basic features of sinusoidal functions: midline, amplitude, and period.

Below is the graph of a trigonometric function. It intersects its midline at (3.7, 5) and again at (5.9, 5) . What is the period of the function? Give an exact value.

Suppose I graph the equation on Desmos. Is there a way for Desmos itself to determine the amplitude and period from the equation?

You can find the period by going from peak to peak, or trough to trough, or midline to midline. If you use midline of course you will need to keep in mind that you will need to skip a midline …

Typically in "find the equation given 2 points," your first goal is finding the period. An useful graph @ the hints in the practice problems tremendously aided me, so I recommend using that.

For a sound wave, a displacement versus time graph represents what that particular air molecule is doing as a function of time, and on this type of graph, the interval between peaks represents …

So I've done a lot of practice with phase shift but I still have trouble determining the parameters of the equation asin (bx+c)+d when there is a word problem given or when they ask you to graph …

Sal graphs y=2*sin (-x) by considering it as a vertical stretch and a horizontal reflection of y=sin (x). Created by Sal Khan and Monterey Institute for Technology and Education.

Finding amplitude & midline of sinusoidal functions from their formulas Learn Amplitude & period of sinusoidal functions from equation

David defines the terms amplitude and period for simple harmonic motion and shows how to find them on a graph.