The distance from city A to city B is approx. 2160 miles. A plane flying directly to city B passes over A at noon. If the plane travels at 500 mph, find the rule of the function f(t) that gives the distance of the plane from city B at time t hours (with t=0 corresponding to noon)

Question

f(t)=?

Answer 1

f(t) = 2160 - 500 t

(or (t - 12) if using a 24 hour clock)