Suppose that is an open interval and that for all . If , show that the part of the graph of on is never below the tangent line to the graph at .

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- April 16th 2010, 07:40 AMKipster1203Looking at tangent lines
Suppose that is an open interval and that for all . If , show that the part of the graph of on is never below the tangent line to the graph at .

- April 16th 2010, 10:31 AMDrexel28