\"\"

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The average rate change of f from \"\" is \"\".

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The function is \"\".

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\"\"                                 (Write original function)

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\"\"                              (Substitute \"\")

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\"\"                                                               (Simplify)\"\"

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\"\"                                 (Write original function)

\

\"\"                              (Substitute \"\")

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\"\"                                       (Simplify)

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\"\"                                                             (Simplify)\"\"

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The average rate change of f from \"\" is

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\"\"                                                            (Substitute \"\")

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\"\"                                                         (Substitute \"\")

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\"\"                                                                           (Simplify)\"\"

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The slope of the secant is positive.