Complete the table. $($Round your answers to four decimal places.$)$

$\underset{x4}{lim}\frac{x-4}{x^2-5x+4}$

$\backslash$table$[[x,3\mathrm{.}9,3\mathrm{.}99,3\mathrm{.}999,4,4\mathrm{.}001,4\mathrm{.}01,4\mathrm{.}1],[f(x),x,\frac{0\mathrm{.}333}{x},\frac{0\mathrm{.}3333}{x},,,,]]$

Use the result to estimate the limit$.$ Use a graphing utility to graph the function to confirm your result. $($Round your answer to four decimal places.$)$

$\underset{x4}{lim}\frac{x-4}{x^2-5x+4}$~~