\[y = \left\{ \begin{matrix} 1,\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x < - 1 \\ - 4x - 3,\ \ - 1 \leq x \leq 1 \\ - 7,\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x \geq 1 \\ \end{matrix} \right.\ \]
\[y = 1\]
\[y = - 4x - 3\]
\[x\] | \[0\] | \[- 1\] |
---|---|---|
\[y\] | \[- 3\] | \[1\] |
\[y = - 7\]