\[\boxed{\text{1313.\ }\text{еуроки}\text{-}\text{ответы}\text{\ }\text{на}\text{\ }\text{пятёрку}}\]
\[\textbf{а)}\ y = \frac{2x + 3}{x}\]
\[\textbf{б)}\ y = \frac{4 - 5x}{x}\]
\[\textbf{в)}\ y = \frac{12}{x - 4}\]
\[\textbf{г)}\ y = - \frac{6}{x + 3}\]