Question

A circle has its center at (-1, 2) and a radius of 3 units. What is the equation of the circle?

Answer 1

(x + 1)2 + (y - 2)2 = 9
(x - 1)2 + (y + 2)2 = 3
(x + 1)2 + (y - 2)2 = 3
(x + 1)2 + (y + 2)2 = 9

Answer 2

plug it into the formula

--> (x-h)^2 + (y-k)^2 = r^2

Answer 3

(h,k) is center
r is radius

Answer 4

take a guess... which one?

Answer 5

use what dumbcow says...

Answer 6

the last one?

Answer 7

guess again...

Answer 8

first one