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Mathematics 7 Online
OpenStudy (flowey15):

Write the equation of the circle with center (2, -3) and a radius of 4.

OpenStudy (anonymous):

im not sure about this one @Michele_Laino can you help?!?!

OpenStudy (mathmale):

the standard equation of a circle centered at the origin is\[x^2 + y^2 = r^2.\]

OpenStudy (mathmale):

There is a similar equation for a circle whose center is not at the origin, but is at (h,k). Find and share that equation, please.

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