Write the equation of the circle graphed. The equation of a circle is
(x – h)^2 + (y – k)^2 = r^2

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

D and r =
For the circle graphed, the center is (-1,
Substitute the center and radius into the equation:
(x – D² + (y- 1)² =(
Simplify:
(x+
)2
+ y – 12 =
)2 + (y – 1)2 =