Final answer:
When the price of bus tickets is raised, Alphonso's new budget constraint will be affected and he will be able to purchase fewer bus tickets. The opportunity cost of bus tickets increases as Alphonso has to give up more burgers to purchase bus tickets.
Step-by-step explanation:
When the price of bus tickets is raised to $1 per trip, Alphonso's new budget constraint will be affected. The new budget line will have a steeper slope, indicating that he can purchase fewer bus tickets for the same amount of money. The opportunity cost of bus tickets increases because now Alphonso has to give up more burgers in order to purchase bus tickets.