Ответ:
\[y = \sqrt{x^{2}} + 2x - 1,\ если\ x \leq 0\]
\[y = \sqrt{x^{2}} + 2x - 1 =\]
\[= - x + 2x - 1 = x - 1\]
| \[x\] | \[0\] | \[- 2\] |
|---|---|---|
| \[y\] | \[- 1\] | \[- 3\] |

\[y = \sqrt{x^{2}} + 2x - 1,\ если\ x \leq 0\]
\[y = \sqrt{x^{2}} + 2x - 1 =\]
\[= - x + 2x - 1 = x - 1\]
| \[x\] | \[0\] | \[- 2\] |
|---|---|---|
| \[y\] | \[- 1\] | \[- 3\] |
