\[\boxed{\text{1268.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[y = kx + b\]
\[1)\ A(3;2);\ \ B( - 1;4):\]
\[\left\{ \begin{matrix} 3k + b = 2\ \\ - k + b = 4 \\ \end{matrix} \right.\ ( - )\]
\[4k = - 2\]
\[k = - 0,5;\]
\[b = 4 + k = 4 - 0,5 = 3,5.\]
\[Уравнение:\]
\[y = - 0,5x + 3,5.\]
\[2)\ C( - 2; - 3);\ \ D(1;6):\]
\[\left\{ \begin{matrix} - 2k + b = - 3 \\ k + b = 6\ \ \ \ \ \ \ \ \ \\ \end{matrix} \right.\ ( - )\]
\[- 3k = - 9\]
\[k = 3;\]
\[b = 6 - k = 6 - 3 = 3.\]
\[Уравнение:\]
\[y = 3x + 3.\]