\[\boxed{\mathbf{1494}\mathbf{.}}\]
\[y = 3x^{3} - 1;\]
\[y = 2:\]
\[3x^{3} - 1 = 2\]
\[3x^{3} = 3\]
\[x^{3} = 1\]
\[x = 1.\]
\[y^{'}(x) = 3\left( x^{3} \right)^{'} - (1)^{'} =\]
\[= 3 \bullet 3x^{2} - 0 = 9x^{2};\]
\[y^{'}(1) = 9 \bullet 1^{2} = 9.\]
\[Ответ:\ \ k = 9.\]