1 find the radius of the circle given by the equation x2y2

1) find the radius of the circle given by the equation x^2+y^2 - 12x +6y +25=0

2) find the domain of the f(x)=x-2 / x^2+4

3) Find the vertical and horizatal asymptotes of 5x-3 /3x-4

1) x^2 + y^2 - 12x +6y + 25 = 0

(x - 6)^2 + (y + 3)^2 = 2

Radius = sqrt(20) = 4.47

2) f(x) = (x-2)/(x^2+4)

Domain ====> - < x < +

3) (5x-3)/(3x-4)

Horizontal asymptotes =====> y = 5/3

vertical asymptotes =====> x = 4/3