Question

need help so i can pass my test

What is the equation of this circle in standard form?
http://contentlaunch.ple.platoweb.com/testimagedb/3d/3de7ec5b79e9c686c90b6c8b7f25fa41



(x − 5.5)2 + (y − 4)2 = 7
(x + 5.5)2 + (y + 4)2 = 3.5
(x − 5.5)2 + (y − 4)2 = 3.5
(x + 5.5)2 + (y + 4)2 = 12.25
(x − 5.5)2 + (y − 4)2 = 12.25

Answer 1

center of the circle (h,k)
equation of the circle (x-h)^2 + (y-k)^2 = r^2

Answer 2

I can't open your file

Answer 3

therefor answer is the last one