Suppose a consumer derives satisfaction from consuming two types of hamburgers, X and Y. a. Graph the budget line of the consumer under the assumption that he is offered a "buy two, get one free" deal for burger X (limit one free burger).?b. Graph the budget constraint under the assumption that the consumer of burger Y also offers a "buy two, get one free" deal (limit one free burger).?c. Explain in words why each of the above budget constraints looks as it does.