Question

Find the coordinates of the center and the length of the radius of the following circle.

(x + 3) 2 + (y - 6) 2 = 24

Answer 1

standard formula of centre (a,b) and radius r is
\[(x-a^2+(y-b)^2=r^2\]
so from given equation write in standard form

centre is (-3,6)
radius
\[r=2\sqrt{6}=4.89\]

Answer 2

Oh, OK. Thank you so much!!