Question

The circle below is centered at the point (2, -1) and has a radius of length 3. What is its equation?

Answer 1

the equation for a circle is

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

now we plug in h = 2, k = -1, and r = 3

Answer 2

I think its (x - 2)2 + (y + 1)2 = 32

Answer 3

right

Answer 4

:D