\"\"

\

\

The function is \"\".

\

Since the function is a radical function, it domain is \"\".

\

Find the critical numbers by applying derivative .

\

\

\"\"

\

Equate it to zero.

\

\"\"

\

Therefore the critical numbers are \"\", \"\", \"\" and \"\".

\

Test intervals are  \"\", \"\" and \"\".

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
Test intervals \

Test value

\ 		\

Sign of \"\"

\ 		Conclusion
\"\"\"\" \

\"\"

\ 		Decreasing
\"\"\"\" \

\"\"

\ 		Increasing
\"\" \"\" \

\"\"

\ 		Decreasing
\

The function \"\" is decreasing on the intervals \"\" and \"\".

\

The function \"\" is increasing on the interval \"\".

\

\"\"

\

The function \"\" is decreasing on the intervals \"\" and \"\".

\

The function \"\" is increasing on the interval \"\".