Question

The owner of a video store has determined that the profits "P" of the store are approximately given by P(x)=-x^(2)+30x+76, where x is the number of videos rented daily. Find the number of videos that must be rented to get the maximum daily profit, then find the maximum daily profit to the nearest dollar.

Answer 1

do you know how to differentiate..?

Answer 2

take the derivative of P(x) and equate to zero find which number make the equation 0 then put it on the original equation