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.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same