$\"\"$

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The polar equation is $\"\"$ .

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Transform the equation to rectanglular coordinates.

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$\"\"$

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Multiply on each side by $\"\"$ .

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$\"\"$

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Substitute $\"r$ and $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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The equation $\"\"$ is in the form of standard circle equation $\"\"$ with center $\"\"$ and $\"\"$ .

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$\"\"$

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Graph the equation $\"\"$ .

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Graph:

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$\"\"$

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$\"\"$

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$\"\"$ .

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The equation $\"\"$ is circle with center $\"\"$ and radius $\"\"$ .

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Graph of the equation $\"\"$ is

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$\"\"$