Question

Which is the equation of a circle with the center at (4, 7) and the radius 4 units long?
Answer
(x + 4)2 + (y + 7)2 = 16
(x − 4)2 + (y − 7)2 = 16
(x + 4)2 + (y + 7)2 = 4
(x − 4)2 + (y − 7)2 = 4

Answer 1

The second one
(x − 4)2 + (y − 7)2 = 16