Determine Whether Function Is One-To-One $\begin{array}{c|c|c|c|c}\mathrm{x} & -2 & -1 & 0 & 1 \\\hline \mathrm{f}(\mathrm{x}) & -6 & -6 & 2 & -1 \\\hline\end{array}$

True/False

Determine whether function is one-to-one.
- $\begin{array}{c|c|c|c|c}\mathrm{x} & -2 & -1 & 0 & 1 \\\hline \mathrm{f}(\mathrm{x}) & -6 & -6 & 2 & -1 \\\hline\end{array}$