Hard SAT Math Question 19 — Video Explanation | 1600.now

0:00

A circle in the

x y

-plane has a radius of

13

and has its center at

(- 4, 9)

. The equation of this circle is

x^{2} + y^{2} + a x + b y + c = 0

, where

a

,

b

, and

c

are constants. What is the value of

c

?

Your Answer: