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posted by Anonymous Monday, September 7, 2009 at 7:56pm.

What is the equation of a circle with its center at (0,3) and a diameter of 6?

What do you want to find out about this circle?

I need the equation of the circle. The multiple choice answers are: a. x^2+(y+3)^2=9 b. x^2-(y-3)^2=9 c. x^2+y^2-6y=0 d. x^2+(y-3)^2=0 e. x^2+(y-3)^2=36 I don't know where to go from here.

See: http://www.jiskha.com/display.cgi?id=1252375294

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