Connie allocates her income between meat (M) and potatoes (P). Suppose Connie has a monthly income of $200 and the price of meat is $5. Her supermarket has a special promotion. If she buys 20 pounds of potatoes at $2 per pound, she gets the next 10 pounds for free. This offer applies only to the first 20 pounds she buys. All potatoes in excess of the first 20 pounds (excluding bonus potatoes) are still $2 per pound. Required:
Draw her budget constraint with on the horizontal axis and on the vertical axis and write her budget constraint equation with this promotion.