1. The problem statement, all variables and given/known data I am to design a 600mL water bottle by drawing one side (bottle lying horizontally). Three types of functions must be included (different orders). The cross-sectional view would be centred about the x-axis, and the y-axis would represent the radius of that particular section. There are meant to be no gaps and a "smooth transition between curves must be present. 2. Relevant equations All they have given us is V=πr^2 and V=π∫y^2 dx. 3. The attempt at a solution I don't know even know where to start.