\(\newcommand{\twoline}[2]{\begin{pmatrix}#1 \\ #2 \end{pmatrix}}\newcommand{\amp}{&}\)

Consider the function [math] given by
[math]
  1. Find [math]
  2. Find an element [math] in the domain such that [math]
  3. Find an element [math] of the domain such that [math]
  4. Find an element of the codomain that is not in the range.

Solution: