Mark and Marcy have obtained a 30-year, fixed rate mortgage for $650,250 with a 7.15% interest rate. They purchased 2 points and their rate is now 6.975%. Factoring in the cost of points, when is the break-even point on their mortgage?

14 years, 2 months
9 years, 6 months
7 years, 1 month
7 years, 0 months