Question

The point (-4.3) lies on a circle whose center is at (2,1). Find an equation of this circle.

Answer 1

start with the equation

(x-2)^2 + (y-1)^2 = r^2

sub in the point (-4,3) to find r^2

Answer 2

Is the answer
(x-2)^2+(y-1)^2=40

Answer 3

correct