ln Problems 7- 12, determine whether each function's ver- tex is a maximum point or a minimum point and find the coordinates of this point. Find the zeros, if any exist, and the yintercept. Then sketch the graph of the function. 3,y=_2xz+13x 12.x2+x+2y=5 2. If a rm has the following cost and revenue functions. nd the break-even points. 1 C(x) = 3600 + 25:: + 5x2. R(x) = (175 - ix): 12. The prot function for a rm making widgets is P(x) = 88x x2 1200. Find the number of units at which maximum prot is achieved and nd the maximum prot. in Problems 22-24, a supply function and a demand function are given. (:1) Sketch the rst-quadrant portions of those functions on the same set of axes. (b) Label the market equilibrium point. (c) Algebraically determine the market equilibrium point. 22. Supply: p = qr2 + Sq + 16 Demand: p = 216 - Zq 32. The supply and demand for a product are given by 2p - q = 50 and pq = 100 + 20q, respectively. Find the market equilibrium point