The function http://www.imathas.com/cgi-bin/mimet...x%7D%2B%7B9%7Dhas one local minimum and one local maximum.
This function has a local minimum at http://www.imathas.com/cgi-bin/mimetex.cgi?%7Bx%7D =
with value
and a local maximum at http://www.imathas.com/cgi-bin/mimetex.cgi?%7Bx%7D =
with value