$\"\"$

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The conic equation $\"\"$ .

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The coefficients of $\"\"$ and $\"\"$ are the same sign and equal,So the equation is circle.

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Standard form of circle is $\"\"$ ,

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Where center is and radius is $\"\"$ and $\"\"$ is radius.

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Convert the circle equation into standard form of circle.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Compare it to standard form of circle.

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Center $\"\"$ and radius $\"\"$ .

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$\"\"$

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Find four points " radius away from the center in the up, down, left and

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right direction".

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Up $\"\"$

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Down $\"\"$

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Left $\"\"$

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Right $\"\"$

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Graph:

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Draw the coordinate plane.

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Plot the center at $\"\"$ .

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Plot the four points " radius away from the center in the up, down, left and

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right direction".

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Graph the circle $\"\"$ .

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$\"\"$

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$\"\"$

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The conic represents a circle.

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Center of the circle is $\"\"$ .

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Radius of the circle is $\"\"$ units.

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Graph the circle $\"\"$ .

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$\"\"$