Profit function= 81q +18300+0.00029q2+0.0716q-557
Step-by-step explanation:A profit function shows the relationship between a company's total profit and output.
The profit function is equal to the company's total rebenue(TR) minus total cost of the company(TC).
Mahemathically,Profit = TR-TC.
Let D(q)= TC=-0.00039q2-0.0716q+557C(q)
Let TR= 81q +18300.
Profit=TR-TC
Profit =81q+18300-(-0.00029q2-0.0716q+557)
Profit=81q+18300+0.00029q2+0.0716q-557.
