Ответ:
\[y = x² + 4x + 3 \Longrightarrow ветви\ вверх\]
\[x_{0} = \frac{- 4}{2} = - 2;\ \ \]
\[y_{0} = 4 - 8 + 3 = - 1\]
\[( - 2;\ - 1).\]
| \[x\] | \[0\] | \[- 3\] |
|---|---|---|
| \[y\] | \[3\] | \[0\] |

\[y = x² + 4x + 3 \Longrightarrow ветви\ вверх\]
\[x_{0} = \frac{- 4}{2} = - 2;\ \ \]
\[y_{0} = 4 - 8 + 3 = - 1\]
\[( - 2;\ - 1).\]
| \[x\] | \[0\] | \[- 3\] |
|---|---|---|
| \[y\] | \[3\] | \[0\] |
