Desmos Art Functions Card 2018

https://www.desmos.com/calculator/nhwz1cctfa

I like this project, because it helped me to use the functions  and understand the functions in quite interesting way. The way I used to figure out the equations was first sketch  my card on the paper, then I found some example from Desmos.com.  Also,  I used my knowledge from the book. Domain and Rang need to try several times. The challenge for me  is to use log funtions.