find the radius r and the center (h,k) of the following circle

2 2

3 (x-3) + 3y =75

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- June 4th 2008, 01:31 PMshawn9356finding radius/center of circle
find the radius r and the center (h,k) of the following circle

2 2

3 (x-3) + 3y =75 - June 4th 2008, 01:49 PMJhevon
- June 4th 2008, 01:51 PMMoo
Hi !

Use ^2 to write exponents :)

You know that the equation of a circle, of center and of radius R is :

Therefore, try to make appear that form.

The reflex will be to divide the whole equation you have by 3, in order to get

Then, note that .

Recognize in your equation and R :)