Webfoot Industries estimates the demand for its products to be:

Qx= 3000-40Px-20Py+30Pz+0.1M, where M is income and Py and Pz are the prices of related goods. Py= $25, Pz=$100, and M=$45,000

b. The demand function for Webfoot's product can be written Qx=? The inverse demand function can be written Px=? Plot the demand curve on a diagram.

c. If income were to raise by $6,000 demand for good X(at any price) would change by ?. The new demand equation is Qx=?. Plot the new demand curve on your diagram.