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Activity
University of Georgia

University of Georgia: Polar Equations, Using Theorist

For Students 9th - 10th Standards
This site gives a number of examples of polar equations and their graphs. Shows the difference in the graphs just by varying a constant value.
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Activity
Ohio State University

Math 153: Graphing Polar Equations

For Students 9th - 10th Standards
Shows a way to graph polar equations using rectangular coordinates first.