Question 55199
Find the center and the radius of the circle whose equation is given: x^2+y^2+6x+8=0
Rewrite as follows:
x^2+6x+?+y^2 = -8+?
Complete the square to get:
x^2+6x+9 + y^2 = -8+9
Factor to get:
(x+3)^2 + (y-0)^2 = 1
Center at (-3,0)
Radius = 1
Cheers,
Stan H.