Question

Which is an equation of the circle with a radius of 9 units and center at
(–4, 2)?
(x − 9)2 + (y + 4)2 = 4
(x − 4)2 + (y + 2)2 = 81
(x + 4)2 + (y − 2)2 = 81
(x − 2)2 + (y + 4)2 = 81

Answer 1

which one looks the most correct to you?

Answer 2

c

Answer 3

same here .... so lets pick c :)

Answer 4

YAaaaaa thanks :)

Answer 5

youre welcome

if centers are scary for you, just keep in mind that the center will zero it all out:

x+4 = 0 when x=-4
y -2 = 0 when y = 2

the center (-4,2) zeros it all out