https://www.desmos.com/calculator/dg0sq9mrml

I made the phrase “MERRY CHRISTMAS at the beginning of my project. I use the absolute value and some linear function to make the M, constant function and vertical lines to make the E. When I was making the R, I started to use quartic functions to make the curve of R. Y is the same sense when I made E. C is a quadratic function that reflected in y=x.  Actually, S is made of two C. When I was doing the prase, I did lots of function transformation to make it easier. Then I started to make the tree. I used some radical and rational function to make the top and side of the tree. I also made some circles on the tree. I made the adornment of the tree by using sine function. The challenge for me is the face and body of mine. I don’t really know which function do I should use to make my body and face more real. so, I read our math book to figure out which function should I use. Through this project, I can really understand every kind of function’s shape and it improves me the knowledge of the function part.