Question

Find the coordinates of the center and the length of the radius of the following circle.

(x + 2) 2 + y 2 = 10

Answer 1

comparing with standard form
\[(x-a)^2+(y-b)^2=r^2\]


centre is
(-2,0)
radius=\[\sqrt{10}=3.16\]

Answer 2

thank you! This is difficult for me.

Answer 3

write your equation as
\[(x-(-2))+(y-0)^2=(\sqrt{10})^2\]
now comparing with standard form
(-2,0)
radius=sqrt(10)=3.16

i hope it is clear