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January 30, 2015

January 30, 2015

Posted by **Anonymous** on Monday, September 7, 2009 at 10:01pm.

Answers:

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

- math -
**MathMate**, Monday, September 7, 2009 at 10:26pmIf we know that the equation of a circle with the centre at (x0,y0) and radius r:

(x-x0)² + (y-y0)² = r²

Which choice would you take?

- math -
**Anonymous**, Monday, September 7, 2009 at 10:36pmI think it's b.

- math -
**MathMate**, Tuesday, September 8, 2009 at 8:12amb. is correct!

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