The center of a circle is at (0, 0), and the radius of the circle is 3(sqrt)2
. Which equation represents the circle?
A) x2 + y2 = 6
B) x2 + y2 = 18
C) x2 + y2 = 12
D) x2 + y2 = 36

B

Step-by-step explanation:

The equation of a circle is denoted by: , where (h, k) is the center and r is the radius.

Here, we see that the center is (0, 0), so h = 0 and k = 0. Also, the radius is , so r = and .

Then we can write our equation:

The answer is B.

Hope this helps!

-1/2 +2

step-by-step explanation: