Final answer:
This question is about budget allocation and the trade-off between burgers and bus tickets in Mathematics.
Step-by-step explanation:
The subject of the question is Mathematics. This question is about Alphonso's budget problem, where he has $10 in spending money each week that he can allocate between bus tickets and burgers. Burgers cost $2 each, and bus tickets are 50 cents each. The graph shows different options and choices Alphonso can make with his budget.
For example, if Alphonso spends all his money on burgers, he can afford 5 burgers per week. On the other hand, if he spends all his money on bus tickets, he can afford 20 bus tickets per week. The graph represents these alternatives as points A (5 burgers and 0 bus tickets) and F (0 burgers and 20 bus tickets).
In summary, this is a Mathematics question about budget allocation and the trade-off between burgers and bus tickets.