Question

Which of the following is the equation of the circle with center (4, 0) and r =sqrt 5

x2 + (y - 4)2 = 5

x2 + (y + 4)2 =

(x + 4)2 + y2 =

Answer 1

for center (a, b) and r =c

(x-a)2 + (y - b)2 = c^2