Question

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

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 1

C