Answer:
- D) Center: (1, - 1); Radius = 11
-----------------
Given circle:
- (x - 1)² + (y + 1)² = 121
Use general equation of a circle:
- (x - h)² + (y - k)² = r²,
where (h, k) is the center and r is radius
From the given equation, we see that:
- h = 1, k = - 1, r = √121 = 11
Hence the center is (1, - 1) and radius is 11 units.
This is matching the last choice.