\(\begin{array}{l}
A\left( {0;\,\,1} \right),\,\,B\left( {1;\,\,2} \right),\,\,C\left( { - 5;\, - 4} \right)\\
\overrightarrow {AB} = \left( {1;\,\,1} \right)\\
\overrightarrow {AC} = \left( { - 5;\,\, - 5} \right) = - 5\overrightarrow {AB} \\
\Rightarrow A,\,\,B,\,\,C\,\,\,thang\,\,hang.
\end{array}\)