Question: Explain and graphically depict how each of the following situations changes the demand or supply of seats on an airplane, and what happens to the equilibrium price and quantity of seats on an airplane as a result (NOTE: I just want the graphs for the demand and supply of air travel).

a. Airfares tumble, while long distance bus fares remain unchanged

b. The price of jet fuel (an input needed to make the plane run) rises.

c. Airlines reduce the number of flights each day.

d. An unseasonably cold winter in the Northeast makes more people want to take a vacation to Florida. (There is a change in preferences and as a result more people will travel who would not have traveled before).

e. The price of traveling via train (a substitute of traveling by air) decreases.

f. The price of peanut butter changes (there are no meals or snacks served on the flights).