2. You are in charge to determine how much each person should pay to cross a bridge. You know the demand flmction, P = 30,000 Q, where P is the price to cross the bridge and Q is number of customers who cross the bridge. a. Draw the demand function. If you do not charge customers any fee to cross the bridge, how many customers will cross the bridge? Show it in your diagram. (5 points) b. Show the lost of consumer surplus in a diagram when you charge each customer Rp10,000 to cross the bridge and when you charge them Rp15,000. Calculate and compare the lost of the consumer surpluses from the two different prices. (8 points) [Hints the initial condition (or the initial consumer surplus) is when you do not charge customers any fee to cross the bridge] c. When the price increases from Rp10,000 to Rp 15,000, calculate the (arc) price elasticity of the demand and the change in your total revenue. Based on your calculation, what correlation can you suggest between price elasticity of demand, price change, and change in revenue? (7 points) d. With the analysis above, what is the price you want to charge to each customer if you are not concerned about the cost of constructing the bridge? Give your reasons for the answer. (5 points)