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:
Automatic Stabilizers
Economic policies and programs, like unemployment benefits and progressive taxation, that automatically help stabilize an economy by decreasing the effects of economic fluctuations.
Aggregate Demand
Aggregate requirement for goods and services within an economic system, evaluated at a fixed comprehensive price level over a defined period.
National Debt
The total amount of money that a country's government has borrowed, by various means, to cover its spending in excess of tax revenues.
Federal Budget Deficit
The shortfall when the federal government's expenditures exceed its revenues within a fiscal year.
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