Find a function that models weekly profit in terms of price per feeder. (Let x be the price per feeder and P(x) be the profit.)

Question

A community bird-watching society makes and sells simple bird feeders to raise money for its conservation activities. The materials for each feeder cost $4, and the society sells an average of 36 per week at a price of $8 each. The society has been considering raising the price, so it conducts a survey and finds that for every dollar increase, it loses 3 sales per week.

Answer 1

They make $4 profit for each one they sell...

Profit P(x) = 4x