What is the centre and radius of the circle represented by the following equation: x^2 + 12x + y^2 - 18y + 108 = 0.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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What is the centre and radius of the circle represented by the following equation: 

x^2 + 12x + y^2 - 18y + 108 = 0. 

 

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