Find the open intervals where f (m) is concave up and where it is concave down. Enter the intervals in set notation. For example, if the function is concave up _ when 10 m < 2 as well as when 4 < m < 7, then you would enter (-10,2) U (4,7). f (m) == = -m² + 17m² concave down intervals: concave up intervals:

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