The point (-1,0) lies on a circle whose center is at (-6,5). Find an equation of this circle

2 answers

You know the equation must be

(x+6)^2 + (y-5)^2 = r^2
sub in the other point (-1,0)

25 + 25 = r^2 = 50

so (x+6)^2 + (y-5)^2 = 50
Thanks!! for the help