Question

A large passenger airplane is making the 9,537-mile trip from New York to Singapore. During this flight, the plane will use 47,685 gallons of fuel, or 5 gallons per mile of flight. The function F(d) represents the amount of fuel, in gallons, consumed by the airplane on this trip after d miles of flight.
What is the domain of F(d)?

Answer 1

The plane travels 9,537 miles total, so d can range from 0 up to 9,537 miles. Thus the domain is all real d with 0 ≤ d ≤ 9537 (miles).