Ответ:
\[y = - \sqrt{x - 4};\ \ x \geq 4\]
| \[x\] | \[4\] | \[5\] | \[8\] | \[13\] |
|---|---|---|---|---|
| \[y\] | \[0\] | \[- 1\] | \[- 2\] | \[- 3\] |
\[D(y) = \lbrack 4; + \infty).\]

\[y = - \sqrt{x - 4};\ \ x \geq 4\]
| \[x\] | \[4\] | \[5\] | \[8\] | \[13\] |
|---|---|---|---|---|
| \[y\] | \[0\] | \[- 1\] | \[- 2\] | \[- 3\] |
\[D(y) = \lbrack 4; + \infty).\]
