Use the given graph of f to find the following. (a) The intervals on which f is increasing. 5주 (b) The intervals on which f is concave up. 5-4 -3 -2 -1/0 3. 4. (c) The coordinates of the points of inflection. -2 -4 (d) The coordinates of the absolute maximum over the inter- val [1, 3].

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