algebra
posted by Sara on .
find center and radius of circle
(x6)^2+(y+9)^2=121
(x6)^2 (x6)^2
(y+9)^2=121121(x6)^2
(y+9)^2=+/ ã121(x6)^2
9 9
y=9+/ã121(x6)^2
does anyone know is this the answer or do I go further???????????????????????

Your equation is already in the standard form of
(xh)^2 + (yk)^2 = r^2
where (h,k) is the centre and the radius is r
so for (x6)^2+(y+9)^2=121
the centre is (6,9) and the radius is 11
I have no clue what you were trying to do in your solution
.
Also this is the third student who has statements like your
9 9
in a sequential solution.
What is that supposed to mean?
Are you all from the same class? 
I know Lori. We are suppose to show the number we left out or took away.

Where are they showing you that way?
Tell me the city or state or province, don't name the school