An airplane at cruising altitude starts descending for a landing. the function f (t) = 33,600 – 1500t describes its altitude t minutes after starting its descent. what is the airplane's altitude after 10 minutes?

ANSWER

18,600

EXPLANATION

The function that describes the altitude of the plane t minutes after starting its descent is

To find the airplane's altitude after 10 minutes, we substitute t=10 into the function.

Therefore the airplane's altitude after 10 minutes is 18,600 units.

the factors are :-

hence, x = -3 or x = -4