Use the graph to identify all discontinuities of f. 
Definitions:
Accommodation Party
An entity or person who signs a negotiable instrument on behalf of another, guaranteeing payment without receiving any direct benefit.
Education Loan Contract
A legal agreement between a lender and a borrower, where the lender provides funds for education, which the borrower agrees to repay under defined terms.
Accommodation Party
A person who signs a negotiable instrument on behalf of another, typically to lend their credit without direct benefit.
Negotiable Instrument
A financial document that guarantees payment of a specified amount of money, either on-demand or at a set time, and is transferable from one person to another.
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