Which equation represents a circle with the same radius as the circle shown but with a center at (-1, 1)? (x – 1)2 (y 1)2 = 16 (x – 1)2 (y 1)2 = 4 (x 1)2 (y –1)2 = 4 (x 1)2 (y – 1)2 = 16.