Suppose a company has fixed costs of $100 and it costs them $40 to produce a product. Products are sold for $60. a. What is the cost function? b. What is the revenue function? c. What is the profit function? d. What is the break-even point? Assume that a company has fixed costs of $500, and it costs $20 to produce an item. The price function for the item is p(x)=125-x. a. What is the cost function? b. What is the revenue function? (revenue = price*items sold) c. What is the maximum revenue? d. What is the profit function? e. Identify the cost, revenue and profit functions on the graph on the next page. Mark the break-even points, maximum revenue and maximum profit on the graph.