erin512
Identify the center and radius for the following equation: x²+y²=7



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stgreen
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center (0,0)
radius sqrt(7)

erin512
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how did you get that?

stgreen
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standard eq. fo circle (xh)^2+(yk)^2=r^2
(h,k) center and r as radius

erin512
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so is that definitely correct? thanks!