## Sinusoidal Model Building Examples

## "How to Video" on how to build a trigonometric model from data

## Steps to Use Trigonometric Regression with Desmos

1) Enter Data into a table (this should be x1 y1 table if it is your first model)

2) type in function y=a*sin(bx+c)+d

3) This did not do anything

4) change = to tilde ~ SHIFT BLUE BUTTON (see images below for where tilde is)

5) change x to x1 (name of x data list (unless you have multiple x lists))

6) change y to y1 (name of y data list (unless you have multiple y lists))

DONE this should perform sinusoidal regression for you

## tilde looks like ~

## Tilde on keyboard is SHIFT `

(the button in blue) (the button to the left of 1) (button below esc)

image source: https://www.computerhope.com/jargon/t/tilde.htm