In Exercises 29 through 35, assume that the required extreme value is a relative extremum.

A manufacturer is planning to sell a new product at the price of $210 per unit and estimates that if x thousand dollars is spent on development and y thousand dollars is spent on promotion, consumers will buy approximately

units of the product. If manufacturing costs for this product are $135 per unit, how much should the manufacturer spend on development and how much on promotion to generate the largest possible profit from the sale of this product?

Transcribed Image Text:

640y 216x y + 3 x + 5 +