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Suppose that ​f(2​)equals4 and that fprime​(x)equals0 for all x. must ​f(x)equals4 for all​ x? give reasons for your answer.

User Miku
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Yes. If f'(x) = 0 everywhere, then the graph of f(x) is a horizontal line. If f(2) = 4, then f(x) = 4 for any x.

User Eduardo Vargas
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