Chapter 8.5, Problem 83ES

(a)

To determine

To calculate: The number of bird feeders that should be sold to earn the maximum weekly profit by The Outdoor Life Company, when the function to compute the weekly profit is $f\left(x\right)=-0.4x^2+80x-200$, where x represents the number of bird feeders built and sold.

(b)

To determine

To calculate: The maximum weekly profit received by selling the bird feeders, whose weekly profit is given by the function $f\left(x\right)=-0.4x^2+80x-200$, where x represents the number of bird feeders built and sold.