I Question 13 v The function e?) = 2:123 273:2 + 1082': + 11 has derivative f'(:r:) = 6:122 54:1: + 108. Find the critical points, then use the second derivative test to determine whether they are a minimum or a maximum. x) has a local minimum at 3:: equals C] with value and a local maximum at 1*: equals C] Question Help: El'v'ideo Submit Question O Question 14 v An optimization specialist studied a factory's existing processes and work-ow to implemented new equipment and updated production processes. After the new equipment and processes were in place, he studied the production and modeled the productivity with the following function: P(t) = 3:3 l 54t2 l 4t, where t is the number of hours worked in a 10-hour shift. Find the point of diminishing returns for this factory- The point of diminishing returns is at t = C] Hint: the point of diminishing returns is the inection point Submit