Question

HELP!!!

Circle P has a radius of 8 units with center P at (2, -1). Which equation defines circle P?
(x + 2)2 + (y – 1)2 = 64

(x – 2)2 + (y + 1)2 = 64

(x – 2)2 + (y + 1)2 = 8

(x + 2)2 + (y – 1)2 = 8

Answer 1

circle formula
\[(x-h)^2+(y-k)^2=r^2\]
center of circle is (h,k) with radius r

Answer 2

??

Answer 3

that is the formula for a circle..sorry i'm not quite sure how else to explain it

Answer 4

its ight ill just get someone els to help me buh thnks thoe [; !

Answer 5

i just continue what cherio said,
(x-h)^2 + (y-k)^2 = r^2
center of circle is (h,k) with radius r
here given the center is (2,-1) and its radius = 8. So, just put the values of them :
(x-2)^2 + (y-(-1))^2 = 8^2
(x-2)^2 + (y+1)^2 = 64