a. A profit-maximizing firm has the total-cost function TC(q)=1/3 q-2q+3q + 84 where q represents quantity produced. i. What is the firm's Fixed Cost (FC). - ii. iii. iv. Find the value of q which maximizes total cost TC. Find the values of q for which TC(q) is decresing? < For what values of q is TC(q) convex? min TCal= 22 93 inton 2ndder TC9 30 b. The composite function f(x) is defined as follows: x2 1 for x 0 f(x) = -x for x > 0. Examine whether this function is continuous everywhere in its domain. [2] [10] [6] [3] [13] Activate Windo Go to Settings to ac