In the text we mentioned how Levi Strauss price discriminates between the European and American markets. This question is designed to help you analyze this situation. The following equations are hypothetical demand curves for Levi's 501s in Europe and in America. We have expressed the price in dollars in both markets, and quantity is thousands of units per year.
European Demand: QDE = 150 - P
American Demand: QDA = 250 - 4P
Recalling that a straight-line demand curve has an associated MR curve that has twice its slope, plot the two MR curves.