Постройте график функции: y=-2x; x>=0; y=2x; x<0.

Question

Accepted Answer

\[y = \left\{ \begin{matrix} - 2x,\ \ если\ x \geq 0 \\ 2x,\ \ \ \ \ \ \ \ \ \ \ \ если\ x < 0 \\ \end{matrix} \right.\ \]

\[x\]	\[0\]	\[1\]	\[- 1\]	\[- 2\]
\[y\]	\[0\]	\[- 2\]	\[- 2\]	\[- 4\]

Ответ: