pls see this link in desmos: https://www.desmos.com/calculator/6on1gg1mwo then answer this 1. What are the functions used in your design? How are these functions essential in making your prototype work? 2. Give at least 6 piecewise functions used on the graph and identify the critical points used in each piecewise function (the critical points are the intersection of any two functions, forming a piecewise function, along the x-axis in the graph). Give at least 6 critical points and their respective sub-functions. 3. What are the limits formulated in each piecewise function as x approaches the critical point? 4. Do the critical points make the two functions continuous or discontinuous? If it is a discontinuity, then identify the type (removable, jump or infinite discontinuous). 5. What is the marketing advantage/selling point of your prototype?