First, I find a image of face.I insert the image, and then I think which relation can matach the image and try it many times. The hardest part is the cap of the picture because it consist by linear,quadratic, and circle. It spends me about 2 hours. The face is circle,but I cut out the part cover by cap. The mouth is made by circle and quadratic.This assignment helps me understand the relations and how to use it.