Hey, I told you use completing the square to find the vertex, boring.
2 n^2 - 84 n = - p - 45
n^2 - 42 n = -p/2 - 22.5
n^2 - 42 n + (21)^2 = -p/2 -22.5 + 441
(n-21)^2 = - (p/2 - 418.5)
(n-21)^2 = - (1/2) (p - 837)
so 21 taxis making 837
The hourly profit ($P) obtained from operating a fleet of n taxis is given by
P=-2n^2+84n-45
What is the profit if 20 taxis are on the road?
What is the maximum hourly profit?
What number of taxis gives the max hourly profit?
How much money is lost per hour if no taxis are on the road?
1 answer
2 answers