Question

Which of the following is the equation of a circle with center (5, -2) and a radius of 3?
A:(x-5)^2+(y+2)^2=9
B:(x+5)^2+(y-2)^2=9
C:(x-5)^2+(y+2)^2=3
D:(x+5)^2+(y-2)^2=3

Answer 1

EQUATION OF A CIRCLE = (x-h)² + (y-k)² =r²

Since the center of the cercle is in O, then h=5 & k=-2

(x-5)² + (y+2² =9