Question

find the center and radius of the circle x squared -5y+y squared +4x-1 =0

Answer 1

center = (-2,5/2)
radius=sqrt(45)/2

Answer 2

how did you do it chanh

Answer 3

x^2+4x+y^2-5y-1=0
x^2+4x+4+y^2-5y+25/4-4-25/4-1=0
(x+2)^2+(y-5/2)^2=45/4
thus center= (-2,5/2)
\[radius=\sqrt{45}/2\]

Answer 4

thank you chanh

Answer 5

u welcome