\[\boxed{\text{206\ (206).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ y = \ \frac{2x + 11}{10}\ \]
\[\frac{2x + 11}{10} = 0\]
\[2x + 11 = 0\]
\[2x = - 11\]
\[x = - 5,5.\]
\[\textbf{б)}\ y = \frac{6}{8 - 0,5x}\]
\[\frac{6}{8 - 0,5x} = 0\ \ \]
\[корней\ нет \Longrightarrow не\ существует\ \]
\[нулей\ функции.\]
\[\textbf{в)}\ y = \frac{3x^{2} - 12}{4}\]
\[\frac{3x^{2} - 12}{4} = 0\]
\[3x^{2} - 12 = 0\]
\[3x^{2} = 12\]
\[x^{2} = 4\]
\[x = \pm 2.\]