Question

A circle has its center at (-2,5) and a radius of 4 units. What is the equation of the circle?

Answer 1

center is (h,k) and radius is r then
(x-h)²+(y-k)²=r²
given center at (-2,5) and radius of 4

(x-(-2))²+(y-5)²=4²
(x+2)²+(y-5)²=16