circle equation?

0 ⤊

write an equation of the circle with center (-2,-3) and radius 8

2007-07-08 10:42:17 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

(x+2)^2 + (y+3)^2 = 64
The general equation of a circle is (x-h)^2+(y-k)^2 =r^ where (h,k) is the center and r is the radius.

2007-07-08 10:48:10 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋

(x+2)^2 + (y+3)^2 = 64

2007-07-08 17:49:27 · answer #2 · answered by brother Mohammed 2 · 0⤊ 0⤋

(x - a)^2 + (y-b)^2 = r^2

a b
-2 -3

r= 8.

Plug em in, and switch on the juice. lol

2007-07-08 17:48:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋

Hint:

find it here:

http://www.purplemath.com/modules/

2007-07-08 17:48:22 · answer #4 · answered by oregfiu 7 · 0⤊ 0⤋