https://www.desmos.com/calculator/xa22qwgh6j

By making this functions card, I tried my best to apply all different functions that I have learned. It is hard to start, so i draw a draft on a piece of paper and then start to make it online. At first, I make the self portrait so that I can do the other parts based on the main part. then I worte down the message “happy” on this card. Finally, I put some stars to enrich this card. Because it is a christmas card, I put a christmas hat on my self portarit.