$\"\"$

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The center of the circle is $\"\"$ .

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The radius is $\"\"$ .

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The standard form of circle is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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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 of circle is $\"\"$ .

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$\"\"$

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Graph:

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Graph the equation of circle is $\"\"$ .

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$\"\"$

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$\"\"$

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The equation of circle is $\"\"$ .

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Graph:

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Graph the equation of circle is $\"\"$ .

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$\"\"$ .