Find $\small{f(-5), f(-2), f(\pi ), f(-2.1), \;\mbox{and}\; f(t^{2}-2)}$ for $\small{f(x) = \large{\frac{x+2}{x-2}}}$. If necessary, use pi to represent $\small{\pi}$.

$\small{f(-5)}$	=
$\small{f(-2)}$	=
$\small{f(\pi )}$	=
$\small{f(-2.1)}$	=
$\small{f(t^{2}-2)}$	=