In: Economics
Given: TC = 2994 + 388Q -30Q2 + 3Q3 a. Find equations for TFC, TVC, AFC, AVC, and MC. b. the levels of output at which both AVC and MC are minimum. c. Find the AVC and MC for the level of output at which the AVC curve is minimum. They should be the same $ amount Note: the turning point of any curve is where it’s rate of change; i. e., it’s derivative equals zero.
TC = 2994 + 388Q -30Q2 + 3Q3
TFC = 1994
TVC = 388Q -30Q2 + 3Q3
AFC = TFC/Q = 1994/Q
AVC = TVC/Q = 388 -30Q + 3Q2
MC = d(TC)/dQ = 388 - 60Q + 9Q2
Finding Q at which AVC is minimum
differentiating AVC with respect to Q and equate to zero and solve for Q
d(AVC)/dQ = - 30 + 6Q = 0
Q = 5
At Q =5; AVC = 388 -30*5 + 3*25
AVC = 313
MC at Q=5
= 388 - 60*5 + 9*25
= 313
Hence, at Q = 5, MC and AVC are same.