\[y = \left\{ \begin{matrix} 2x - 2,\ \ \ \ \ \ если\ \ x \geq 0 \\ \frac{1}{2}x - 2,\ \ \ \ если\ \ \ x < 0 \\ \end{matrix} \right.\ \]
\[x = - 4:\ \ \ \ \]
\[y = \frac{1}{2} \cdot ( - 4) - 2 = - 2 - 2 = - 4.\]
\[x = 0:\]
\[\ y = 2 \cdot 0 - 2 = 0 - 2 = - 2.\]
\[x = 6:\]
\[y = 2 \cdot 6 - 2 = 12 - 2 = 10.\]