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Equation of a circle

Find equation of a circle centered at (-6,-1) and passing through points (-9,1.64575)

asked Jul 6, 2016 in PRECALCULUS by anonymous
reshown Jul 7, 2016 by goushi

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1 Answer

The circle center point is and passing through the point is .

Find the radius.

Substitute in the radius formula.

Find the circle equation.

The circle equation form is

Substitute and in the circle equation

The circle equation is

answered Jul 7, 2016 by Anney Mentor

The answer should equal = 0 not 16 so it's wrong

commented Jul 7, 2016 by anonymous
reshown Jul 7, 2016 by goushi

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