\[y = \frac{k}{x};\ \ P\left( - 1\frac{7}{9}; - 2\frac{1}{4} \right):\]
\[- 2\frac{1}{4} = k\ :\left( - 1\frac{7}{9} \right)\]
\[- \frac{9}{4} = k\ :\left( - \frac{16}{9} \right)\]
\[k = - \frac{16}{9} \cdot \left( - \frac{9}{4} \right)\]
\[k = 4.\]
\[Уравнение\ имеет\ вид:\]
\[y = \frac{4}{x}.\]
\[C\left( 2\frac{2}{11};\ - 1\frac{5}{6} \right):\]
\[- 1\frac{5}{6} = 4\ :2\frac{2}{11}\]
\[Не\ проходит.\]
\[Ответ:не\ проходит.\]