Posted by **lindsay** on Sunday, April 29, 2012 at 12:04am.

Write an equation for each circle if the coordiantes of the center and length of the radius are

a. center(-1,-5) radius = 2 units

b. center(0,3) radius = 7 units

c. center(-9,7) radius = 1/2 units

- geometry -
**Steve**, Sunday, April 29, 2012 at 10:46am
(x-h)^2 + (y-k)^2 = r^2

where (h,k) is the center, r is the radius.

If you get stuck, come on back and show how far you got. Watch those pesky - signs.

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