Posted by Jenna on Saturday, January 15, 2011 at 4:17pm.
Using the procedure of comlpeting the square, write the equation x^2+y^26x+8y=0 in the form (xh)^2+(yk)^2=r^2.
state the domain and range
where(h,k) is the center of the circle and r is the radius

math 20  bobpursley, Saturday, January 15, 2011 at 9:25pm
first,
(x^26x + ?)+(y^2+8y+?)=?
we need (3)^3 in the x, and 4^2 in the y
(x^26x+9)+(y^2+8y+16)=9+16
(x3)^2 + (y+4)^2=5^2

math 20  kyle, Sunday, January 16, 2011 at 12:36am
how did u get 3^3 and 4^2?
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