If a and b are fixed numbers, find parametric equations for the set of all points P determined as shown in the figure, using the angle ang as the parameter. Write the equations for 
and 
. 
Definitions:
Equilibrium Interest Rate
The interest rate at which the quantity of money demanded equals the quantity of money supplied, balancing savings and investment.
Loanable Funds
The funds available for borrowing in the financial markets, influenced by savings, government policies, and financial institutions' lending criteria.
Market
The arena in which buyers and sellers come together to trade goods, services, or financial instruments, establishing prices through supply and demand.
Usury Law
Legislation that sets the maximum interest rate that can be charged on loans, to prevent lenders from imposing excessively high rates.
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