Final answer:
The question about rail ticket prices being increased by 3 lacks context and cannot be answered definitively. However, in a similar scenario, if bus price tickets rise to $1, Alphonso's budget constraint for his $10 weekly budget would be affected, and the opportunity cost of purchasing bus tickets would change.
Step-by-step explanation:
The original student question doesn't provide enough context to answer whether the claim that 'Rail tickets increased in price by 3' is true or false. However, we can address similar issues about ticket prices and budgets through the given self-check questions. Let's consider Alphonso's situation where the price of bus tickets has increased from an undisclosed previous amount to $1 per trip. This increase in bus ticket price, while keeping the price of burgers constant at $2, will affect his weekly budgeting if he has a fixed amount to spend, such as $10 per week.
Firstly, the new budget constraint can be drawn on a graph with bus tickets on one axis and burgers on the other. With bus tickets now costing $1 each, Alphonso could buy a maximum of 10 bus tickets a week if he spends nothing on burgers. Conversely, if he spends his entire budget on burgers, he could buy 5 burgers a week as they cost $2 each. The budget constraint line will connect these two extremes, showing all possible combinations of bus tickets and burgers Alphonso can purchase with his $10 budget.
Secondly, the opportunity cost of bus tickets in terms of burgers would change as well. Before the price hike, each bus ticket ‘cost’ a certain fraction of a burger.
However, with the bus tickets now at $1 and burgers at $2, each bus ticket costs half the price of a burger. So for every bus ticket Alphonso buys, he gives up the opportunity to have half a burger. This is an example of a direct opportunity cost, where spending on one good requires forgoing a fraction of another good.