You can put this solution on YOUR website! Find the local max/min point for the function:
f (x) = x + 16/x
--------------
f'(x) = 1 -16/x^2
---
Solve 1-16/x^2 = 0
16/x^2 = 1
x^2 = 16
x = +4 or x = -4
-----
Please note correction::
Local Maximum:::::: (-4,-8)
Local Minimum:::::: (4,8)
----------
Cheers,
Stan H.
--------------