Find the linear approximation of the function below at the indicated point.

$f(x,y)=\sqrt[\phantom{2}]{38-x^2-4y^2}at(5,1)$

Use this approximation to find $f(5\mathrm{.}06,0\mathrm{.}95).($Round your answer to three decimal places.$)f(5\mathrm{.}06,0\mathrm{.}95)$~~