Solve the following set of equations graphically: 
Definitions:
Reserve Requirement
The lowest sum of money that a bank is required to keep as reserves against the deposits it holds, as mandated by the central bank.
Federal Funds Rate
The interest rate at which banks lend reserves to each other overnight, a key tool of monetary policy used by the Federal Reserve to influence the economy.
Buying Bonds
The act of purchasing debt securities issued by governments or corporations, which pay interest over a fixed period.
Money Supply
The aggregate sum of funds present in an economy at a given moment, encompassing cash, bank deposits, and various readily accessible assets.
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