Question

Find the coordinates of the center and the length of the radius of the following circle.
(x - 5) 2 + (y + 3) 2 = 25
center = ( , )
radius =

Answer 1

center = ( 5 , -3 )
radius = 5

Answer 2

standard equation of a circle = (x-a)^2+ (y-b)^2= r^2
it's center is (a, b) and radius= r
we have the equation
(x - 5)^2 + (y + 3)^2 = 25
so center= (5,-3)
radius= 5