Question

x^2+y^2−14x+6y−6=0 is the equation of a circle with center (h,k) and radius r for:

Answer 1

please nte that yuour equation, can be rewritten as below:
\[(x-7)^{2}+(y-(-3))^{2}=64\]
so?

Answer 2

that is the formula of squared distance between point (x,y) and point (7,-3)
the squared value of that distance is 64, so?

Answer 3

@lawls