1. You want to borrow $300,000 for a 30-year mortgage. You can get a 5% APR with no discount points, or a 4.8% APR for 1 discount point (cost = 1% of loan amount). If you could earn a 9% annual rate of return on other investments (instead of buying the point - use I/Y= 9/12 to answer this part of the question), how long (in months) do you need to stay in the house for the discount point to be worth the cost?