Zach is planning to invest up to $50,000 in corporate and municipal bonds for one year. Let x represent the amount he will invest in corporate bonds and let y represent the amount he will invest in municipal bounds. The least he will invest in corporate bonds is $6000 and he does not want to invest more than $27,000 in corporate bonds. He also does not want to invest more than $34,650 in municipal bonds. The interest is 8.5% on corporate bonds and 6.8% on municipal bonds. This is simple interest for one year.

1. List the coordinates of each vertex of the region of feasible solutions and find the value of the objective function at each vertex. Record the results in the table below.

Vertex	Value of objective function