Question

What is the center and radius of the following circle (x - 5) ^ 2 + (y + 2) ^ 2 = 16

Answer 1

Explanation:

if center=(h,k)

radius=r

eq. of circle is (x-h)^2+(y-k)^2=r^2

given eq. is (x-5)^2+(y+2)^2=16=4^2

comparing

center =(5,-2)

radius r=4