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September 21, 2014

September 21, 2014

Posted by **Miley** on Tuesday, June 3, 2008 at 4:41pm.

circle with center (1,-3) that passes through the point (4,2).

I have (x-1)^2 + (y+3)^2=? how do i get the radius...

- math -
**Reiny**, Tuesday, June 3, 2008 at 5:20pmcomplete your equation to

(x-1)^2 + (y+3)^2= r^2

but (4,2) lies on your circle, so ...

(4-1)^2 + (2+3)^2 = r^2

etc.

- math -
**Miley**, Tuesday, June 3, 2008 at 6:01pmthanks:)

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