\[y = \frac{x - 7}{x + 2} = \frac{x + 2 - 9}{x + 2} =\]
\[= 1 - \frac{9}{x + 2}\]
\[ООФ:\ \ \ ( - \infty;\ - 2) \cup ( - 2;\ + \infty).\]
\[При\ x_{1} > x_{2};\ \ f\left( x_{1} \right) > f\left( x_{2} \right).\]
\[Функция\ возрастает\ на\ всей\ \]
\[области\ определения.\]
\[x\] | \[- 5\] | \[- 4\] | \[- 3\] | \[- 1\] | \[0\] | \[1\] |
---|---|---|---|---|---|---|
\[y\] | \[4\] | \[5,5\] | \[10\] | \[- 8\] | \[- 3,5\] | \[- 2\] |