Alzheimer's Problem of the Day

A firm has a cost curve described by: TC= 10140+0.00001q^3-0.02q^2+16.3q

What is the average cost function?  Find an equation for marginal cost.  Graph.

AC = 10140/q + 0.0000q^2-0.02 +16.3


MC = .00003q^2-.04q +16.3