The center of a circle is at (2, - 5) and its radius is 12.

What is the equation of the circle?

a) (x-2) 2 + (y+5) 2=24

b) (x+2) 2 + (y-5) 2=24

c) (x+2) 2 + (y-5) 2=144

d) (x-2) 2 + (y+5) 2=144

Hello:

an equation of the circle Center at the A (a, b) and ridus : r is:

(x-a) ² + (y-b) ² = r²

in this exercice : a = 2 and b = - 5 (Center at the A) and: r = 12

the equation of the circle is : (x-2) ² + (y+5) ² = 12²=144 (answer d)