Someone please explain!
A circle has its center at (1, 4) and a radius of 2 units. What is the equation of the circle?

(x - 1)2 + (y - 4)2 = 4

(x + 2)2 + (y + 4)2 = 2

(x + 1)2 + (y - 4)2 = 4

(x - 1)2 + (y - 4)2 = 2

Question

Someone please explain! 
A circle has its center at (1, 4) and a radius of 2 units. What is the equation of the circle?

(x - 1)2 + (y - 4)2 = 4

(x + 2)2 + (y + 4)2 = 2

(x + 1)2 + (y - 4)2 = 4

(x - 1)2 + (y - 4)2 = 2

myininaya · Answer

$$(x-h)^2+(y-k)^2=r^2$$
(h,k) center
r radius

myininaya · Answer

simply plug into that to get the answer :)

nenadmatematika · Answer

(x-p)^2+(y-q)^2=r^2 is the equation of the circle where C(p,q) is the center and r is the radius...would you know to use these facts and make your equation?

anonymous · Answer

(x - 1)2 + (y - 4)2 = 2  is this right?

myininaya · Answer

r is 2
so what is r^2?

anonymous · Answer

(x - 1)2 + (y - 4)2 = 4 so it would this?

anonymous · Answer

would be*

nenadmatematika · Answer

yes, correct :D

anonymous · Answer

Thanks you both! (:

nenadmatematika · Answer

yw :)