Question 1177464
assuming you are dealing in degrees, the equation will be:


y = 2.1 * sin(360/3.2 * x)


here's what it looks like.


<img src = "http://theo.x10hosting.com/2021/032401.jpg">


the amplitude is the number of units from the center line of the equation to the highest and lowest points of the equation.


the frequency is equal to 360 divided by the period.


here's a reference

https://mathbitsnotebook.com/Algebra2/TrigGraphs/TGoutline.html
<a href = "" target = "_blank">https://mathbitsnotebook.com/Algebra2/TrigGraphs/TGoutline.html</a>