Question

A Boeing 747 crosses the Atlantic Ocean (300 miles) with an airspeed of 500 miles per hour. The cost C (in dollars) per passenger is given by

C(x) = 100 + x/10 + 36,000/x

where x is the ground speed (airspeed ± wind).

(a) Graph the function C = C(x).
(b) Create a TABLE with TblStart = 0 and △Tbl = 50.
(c) To the nearest 50 miles per hour, what ground speed minimizes the cost per passenger?