Find the center and radius of the circle LaTeX:  \displaystyle \left(x - 3\right)^{2} + \left(y - 4\right)^{2}=64 .

Using the equation of a circle LaTeX:  \displaystyle (x-h)^2+(y-k)^2=r^2 to identify LaTeX:  \displaystyle h,k, and LaTeX:  \displaystyle r gives: LaTeX:  \displaystyle h=3 , LaTeX:  \displaystyle k=4 , and LaTeX:  \displaystyle r=8 . The center is at LaTeX:  \displaystyle (3,4) and the radius is LaTeX:  \displaystyle r = 8 .