4. A furniture store manufactures executive desks. It is estimated that the
total cost of making x desks is given by C(x)=100x + 200,000
dollars per year.
a. Research and find a function that will give the average cost of making
desks (Hint: The symbol,-C(X) , is used to represent the average cost; think
of how the numbers were averaged).
b. Evaluate the lim x-> infinity -C(x)
c. What does this tell you about the advantages that a large chain has over a
small, local producer?