Final answer:
The subject of this question is Mathematics, specifically related to budget constraints and consumer spending. In the given scenario, Ana has a budget of $100 to spend on coffee and soda. The budget constraint graphically represents the different combinations of coffee and soda that Ana can purchase within her budget.
Step-by-step explanation:
The subject of this question is Mathematics, specifically related to budget constraints and consumer spending.
In the given scenario, Ana has a budget of $100 to spend on coffee and soda. Both coffee and soda cost $1 each. The budget constraint graphically represents the different combinations of coffee and soda that Ana can purchase within her budget.
The budget constraint line shows that Ana can buy a maximum of 100 coffee and soda combined. Any point on the budget constraint line or inside it represents a combination of coffee and soda that Ana can afford. For example, she can buy 50 coffees and 50 sodas or 80 coffees and 20 sodas, and so on.