The equation of a circle is expressed as
(x - h)^2 + (y - k)^2 = r^2
Where
h and k are the x and y coordinates of the circle at the center. Looking at the graph, at the center of the circle, x coordinate = 0, y coordinate = 3
Thus,
h = 0, k = 3
Also, the radius = 2 units
If we substitute these values into the equation, we have
(x - 0)^2 + (y - 3)^2 = 2^2
x^2 + (y - 3)^2 = 4
Thus, the equation of the circle is
x^2 + (y - 3)^2 = 4
