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Mathematics 18 Online
OpenStudy (anonymous):

Which of the following is the equation of a circle whose center is at the origin and whose diameter has endpoints (-1, 2) and (1, -2)? x2 + y2 = 2 x2 + y2 = 3 x2 + y2 = 4 x2 + y2 = 5

OpenStudy (experimentx):

none of above ... it somewhere it must be 20 no right hand side

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