Respuesta :

prestonshelton
Hello!

The equation for a circle is

[tex](x - h)^{2} + ( y - k)^{2} = r^{2} [/tex]

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

Put in the values you know

[tex](x - 7)^{2} + ( y + 3)^{2} = 7^{2}[/tex]

Simplify

[tex](x - 7)^{2} + ( y + 3)^{2} = 49[/tex]

The equation is [tex](x - 7)^{2} + ( y + 3)^{2} = 49[/tex]

Hope this helps!
Supernova
Use the equation of a circle: (x – h)² + (y – k)² = r².

Plug in the numbers; center is (h, k) and radius is r.

(x - 7)² + (y - -3) = 7²
Simplify to:
(x - 7)² + (y + 3) = 49