# circles

• July 30th 2008, 08:56 PM
comet2000
circles
Write an equation for the circle with the given properties.

32. Center at (4, -3), radius 2\sqrt{6}

i don't understand it.
• July 30th 2008, 09:05 PM
Serena's Girl
The equation of a circle is

$
(x - h)^2 + (y - k)^2 = r^2
$

where the center is (h, k) and r is the radius. Just substitute directly into the equation (Happy)