Answer:
A
Step-by-step explanation:
Equation describing a circle: (x - x0)^2 + (y - y0)^2 = r^2
- (x0, y0) is the centre
- r is short for radius
The given equation is: (x + 3)^2 + (y - 1)^2 = 4
=> (x - (-3))^2 + (y - 1)^2 = 2^2
- Coordinates of the centre: (-3, 1)
- Radius: 2
Therefore, the answer is A.
