The following diagram shows a budget constraint for a particular consumer. 
If the price of X is $20, then what is the price of Y?
Definitions:
Scope of Authority
The range or limits of the powers and responsibilities legally granted to a person or organization.
Liable
Subject to being held accountable, usually in a legal or financial context, for fulfilling obligations or compensating for an incurred loss or damage.
Constructive Trust
A legal concept created by a court to rectify a situation where someone has wrongfully gained property at another's expense.
Agency Relationship
An agency relationship occurs when one party, the agent, is authorized to act on behalf of another party, the principal, in dealings with third parties.
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