Final answer:
The correct graph representing the total cost for a group to visit the zoo with an admission cost of $15 per person would be a straight line starting at the origin and rising at a slope of $15 for each additional person on the graph. Unrelated details about Alphonso's budget for bus tickets and burgers are not applicable for answering this question.
Step-by-step explanation:
The question is asking us to find a graph that represents the total cost for a group of people to visit the zoo, given that admission to the zoo costs $15 per person. To find the correct graph, we would expect a straight line that starts at the origin (0,0), since if no one goes to the zoo, the cost is $0. As the number of people increases, the cost will rise linearly, with each additional person adding $15 to the total cost. The graph should show a linear relationship between the number of people and the total cost, with the slope of the line representing the rate of $15 per person.
However, the information provided in the reference is not directly related to zoo admission but instead describes a budget constraint for Alphonso's weekly purchase of burgers and bus tickets. To answer the student's question about the zoo, we would not use the budget line described for Alphonso.