Equation of a Circle. Equation Where the center of the circle is (h, k) and r is the radius.

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Presentation transcript:

Equation of a Circle

Equation Where the center of the circle is (h, k) and r is the radius.

Example Write the equation of a circle whose center is at (3, 2) and whose radius is 8.

Example Write the equation of a circle whose center is at (-4, 1) and whose radius is 3.

Example

Given the equation Identify the center and radius of the circle

Example Given the equation Graph the circle

Example Find the equation of the circle whose center is at (-2, 4) and passes through the point (1, 8).