\[\boxed{\text{350\ (350).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[f(x) = 3x^{2} - 6x\]
\[x_{0} = \frac{6}{6} = 1\]
\[y_{0} = 3 - 6 = - 3\]
\[Ox:\ \ \ 3x(x - 2) = 0\]
\[x = 0,\ \ (0;0)\]
\[x = 2,\ \ (2;0)\]
\[\text{Oy}:\ \ x = 0,\ \ y = 0\]
\[f( - 1) = 3 + 6 = 9\]
\[1)\ E(y) = \lbrack - 3; + \infty)\]
\[2)\ ( - \infty;1\rbrack\]
\[3)\ x \in ( - \infty;0\rbrack \cup \lbrack 2;\ + \infty)\]