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You are not logged in. #1 20100417 14:34:34
open interval and tangent line... need help with proofSuppose 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)). #2 20100417 16:44:32
Re: open interval and tangent line... need help with proof
shouldn't it be "Suppose that I am ..."?? If two or more thoughts intersect with each other, then there has to be a point. 