So when graphing polar equations, always begin by creating a Table-of-Values. If r=acos@, then the circle is along the x-axis with diameter "a". If r=asin@, then they exist with a diameter and if r=a then the circle is at (0,0) with radius "a". There are a couple different kinds of polar equations. First are Limacon which are basic circles that has the chess part. The second are Cardiods, which are special cases of limacons. Lastly, rose curves and lemisactes are also polar equations.
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