Consider a two firm duopoly that faces the following inverse demand function p = 500 - 91 - 92 where firm 1 faces constant marginal costs of MC1 = 150 and firm 2 faces constant marginal costs of MC2 = 100 . What is firm 1's best response function? 0 91 = 150 - 292 0 91=350 - 292 0 91 = 175 - 0.592 0 91=200 - 0.592