Suppose that the price of oil doubles, raising the cost of home-heating oil and electricity. What effect would this development have on U.S. firms manufacturing solar panels? Illustrate your answer with two graphs: one showing the situation in the market for solar panels and another graph showing the situation for a representative firm in the industry. Be sure your graph for the industry shows any shifts in the market demand and supply curve and any changes in the equilibrium market price. Be sure that your graph for the representative firm includes its demand curve, marginal revenue curve, marginal cost curve, and average total cost curve.