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.

## Answer This Question

## Related Questions

- college pre-calculus - 4x^2+4y^2-16x-24y+51=0 is the equation of a circle. where...
- geometry - . Which of the following circles would show the locus of points in a ...
- algebra - A few more question Id like for someone to check please. 1) what are ...
- math - 4x^2+4y^2-16x-24y+51=0 is the equation of a circle. where is the center ...
- math - 4x^2+4y^2-16x-24y+51=0 is the equation of a circle. where is the center ...
- calculus-can someone please help me with this ques - I can get part of the ...
- Math - identify the center and radius of the circle with the equation (x+5)^2+(y...
- Math - identify the center and radius of the circle with the equation (x+5)^2+(y...
- Math - These questions that I have completed are on a test review for my exam ...
- Advanced Math - Write the standard form of the equation of a circle that passes ...

More Related Questions