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Topic: Help with visual abs max
Replies: 1   Last Post: May 2, 1998 2:51 PM

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Posts: 156
Registered: 12/6/04
Help with visual abs max
Posted: May 1, 1998 7:20 PM
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Could someone help with the following problem:

dy/dx=(x^3-2x)cosx with domain [0,2]

find the x-coordinate for any absolute maximum of y.

Can I visually determine (looking at a graph of dy/dx) the abscissa of abs
max of y ?

So far I think I can justify the existence of a rel max at x=0 and x=pi/2
with rel mins at x=sqrt 2 and x=2.


Michael Mullen
Westwood High School
Austin, TX

Michael S. Mullen
Westwood High School
Austin, Texas

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