\[y = \left\{ \begin{matrix} - \frac{4}{x + 1};\ \ \ \ \ - 5 \leq x \leq - 2\ \ (1) \\ x^{2} - 2;\ \ \ \ \ \ \ \ \ \ \ - 2 < x < 2\ \ (2) \\ \frac{4}{x - 1};\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2 \leq x \leq 5\ \ (3) \\ \end{matrix} \right.\ \]
\[1)\ y = - \frac{4}{x + 1}\]
\[x\] | \[- 5\] | \[- 3\] | \[- 2\] |
---|---|---|---|
\[y\] | \[1\] | \[2\] | \[4\] |
\[2)\ y = x² - 2\]
\[x\] | \[- 1\] | \[0\] | \[1\] |
---|---|---|---|
\[y\] | \[- 1\] | \[- 2\] | \[- 1\] |
\[3)\ y = \frac{4}{x - 1}\]
\[x\] | \[2\] | \[3\] | \[4\] | \[5\] |
---|---|---|---|---|
\[y\] | \[4\] | \[2\] | \[\frac{4}{3}\] | \[1\] |