Assume that f(1000) = 50, and it's also true that the cost to the consumer of each item is $5, did the retailer make wise use of the store's advertising budget? Explain your thinking.

Question

Assume that f(1000) = 50, and it's also true that the cost to the consumer of each item is $5, did the retailer make wise use of the store's advertising budget?  Explain your thinking.

anonymous · Answer

A retail store advertises a sale on a popular children's toy during the month of November.  The number sold, N, is a function of the amount spent on advertising: N=f(x) where x is in dollars.