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OpenStudy (anonymous):
WHat is the center of the following circle? (x - 2)^2 + (y + 1)^2 = 4
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OpenStudy (anonymous):
center = (2,-1)
OpenStudy (anonymous):
how would you find that?
OpenStudy (anonymous):
eqn of the circle |dw:1345407047107:dw| where a and b are center points of the circle here a=2 and b=-1
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