For the functions LaTeX:  \displaystyle f(x)=\sqrt{x + 6} and LaTeX:  \displaystyle g(x)=x - 8 , find LaTeX:  \displaystyle \left(\frac{f}{g}\right)(x) and the domain of LaTeX:  \displaystyle \left(\frac{f}{g}\right)(x)

LaTeX:  \displaystyle \frac{f}{g}\left(x\right)=\frac{\sqrt{x + 6}}{x - 8} . The domain of LaTeX:  \displaystyle f is the solution to LaTeX:  \displaystyle x + 6\geq 0 . Solving gives LaTeX:  \displaystyle [-6,\infty) . The domain of LaTeX:  \displaystyle g is all real numbers and the zero is LaTeX:  \displaystyle x - 8=0  \iff x= 8 . The domain is the intersection of the domains of LaTeX:  \displaystyle f and LaTeX:  \displaystyle g excluding the zeros of LaTeX:  \displaystyle g . This gives LaTeX:  \displaystyle [-6,8)\cup (8,\infty)