Question

Which is an equation of the circle with a radius of 9 units and center at
(–4, 2)?

Answer 1

Circle equation is (x-a)^2 + (y-b)^2 = r^2
(a,b) will be the center and r the radius.

Answer 2

its one of these...



A.
(x − 9)2 + (y + 4)2 = 4




B.
(x − 4)2 + (y + 2)2 = 81




C.
(x + 4)2 + (y − 2)2 = 81




D.
(x − 2)2 + (y + 4)2 = 81

Answer 3

C

Answer 4

u rock