Find the range and domain of the function $\displaystyle {f{{\left({x}\right)}}}=\frac{{{1}}}{{{x}+{3}}}+{4}$
Range: ? x y $\displaystyle \in$ $\displaystyle {\lbrace}$? x y $\displaystyle \in$ ? Q Z R $\displaystyle {\mid}$ ? x y ? > ≤ = < ≥ ≠  $\displaystyle {\rbrace}$
Domain: ? x y $\displaystyle \in$ $\displaystyle {\lbrace}$? y x $\displaystyle \in$ ? Q Z R $\displaystyle {\mid}$ ? y x ? ≤ ≠ > = < ≥  $\displaystyle {\rbrace}$