(2) What is the main point of example 9.2 in the text? In Example 9.1, the production function for flyswatters was given by q=f(k,l)=600k2l2k3l3. General marginal productivity functions for this production function are MPlMPk=fl=lq=1,200k2l3k3l2,=fk=kq=1,200kl23k2l3. Notice that each of these depends on the values of both inputs. Simple factoring shows that these marginal productivities will be positive for values of k and l for which kl200. However, even within the range 200200. However, even within the range 200