One more time with Circles
Find the coordinates of the center and radius of the circle.
So I like to rewrite it
then I write it as the standard circle equation
^2+(y-K)^2=r^2)
So If I did this right I should have ^2+(y+5)^2=-46)
and then my  is (4,-5) and r=\sqrt46)
Please I need someone to confirm to me I did this properly?
Side note 
is expanded to ^2+16)
and I move the 16 over to the other side of the = sign in the equations.
Re: One more time with Circles
I messed this one up.... my math is wrong
Re: One more time with Circles
You are correct to rewrite as:
Now, we want to complete the square on x and y. Whatever we add to the left side, we must add to the right.
+(y^2+10y+25)=-5+16+25)
Now, write everything as squares:
^2+(y+5)^2=6^2)
From this, we know the center is (4,-5) and the radius is 6.
