Question

I'm having trouble with this problem because I'm not sure what to do with the 1..

21. (x-5)^2+(y+2)^2=1

(x-(5))^2+(y+2)^2= ????

center= (5,2)

radius= ???

Answer 1

x^2 + y^2 = r^2
r is radius

Answer 2

center is (5,-2)