How do you find the center and radius of #X^2+(y+3)^2=25#?
centre = (0 ,-3) , r = 5
The standard form of the equation of a circle is.
where (a ,b) are the coordinates of the centre and r, the radius.
here a = 0 , b =- 3 and r = 5
hence centre = (a ,b) = (0 ,-3) and radius = 5