The endpoints of a side of rectangle abcd in the coordinate plane are at a(3, 6) and(4, 1. find the equation of the line that contains the given segment. the line segment is ab.
i need an answer quick

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?