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#1 2010-04-16 16:34:34

lawilson8510
Member
Registered: 2010-04-16
Posts: 1

open interval and tangent line... need help with proof

Suppose that I is an open interval and that f "(x) is greater than or equal to 0 for all x in I. If b is in I, then show that the part of the graph of f on I is never below the tangent line to the graph at (b, f(b)).

prove this...

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#2 2010-04-16 18:44:32

ZHero
Real Member
Registered: 2008-06-08
Posts: 1,889

Re: open interval and tangent line... need help with proof

lawilson8510 wrote:

Suppose that I is ...

shouldn't it be "Suppose that I am ..."??  neutral


If two or more thoughts intersect with each other, then there has to be a point.

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