Question

This is geometry: Find the coordinates of the center and the measure of a radius for the circle whose equation is (x-8)sq + (y+4)sq =121

Answer 1

Centre is (8,-4)
Radius is 11

Answer 2

thank u so much :D

Answer 3

you can write (x-8)^2 in stead of (x-8)sq.
it gets me confused a little if it's sq not ^2 or ^3