Euclidean Circle Equation?

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The equation x^2-4x+y^2+6y=12 describes a Euclidean circle. Find the center and the radius of this circle.

2006-11-28 11:14:45 · 2 answers · asked by jaxs84 2 in Science & Mathematics ➔ Mathematics

Complete the square:
x^2 - 4x + 4 + y^2 + 6y + 9 = 12+4+9
(x-2)^2 + (y+3)^2 = 25 = 5^2
Radius 5, centre (2,-3).

2006-11-28 11:21:31 · answer #1 · answered by stephen m 4 · 0⤊ 0⤋

Center: 2,-3
Radius: 5

2006-11-28 11:25:35 · answer #2 · answered by Steve 7 · 0⤊ 0⤋