8 . Monopolistic Competition 1. Graphical Picture 2. Profit Max 3. Welfare Effects STEP: 2 of 3 The following graph shows Crest's demand curve, marginal-revenue (MR) curve, average-total-cost (ATC) curve, and marginal-cost (MC) curve. Use the black point (plus symbol) to indicate Crest's profit-maximizing output and price. Demand Profit Max Price, Cost, Revenue ATC MC MR Quantity of Crest Toothpaste True or False: Crest's profit is positive. O True O False