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OpenStudy (anonymous):
Help!!!? What is the center and radius of the following equation... (x-1)^2+(y+1)^2 =4
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OpenStudy (anonymous):
Answers: A) center:(-1,1) radius: 4 B) center: (1,-1) radius: 4 C) center: (-1,1) radius: 2 D) center: (1,-1) radius: 2
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