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Thoroughly investigate the graph of . Identify all of the important qualities, such as where the function is increasing, decreasing, concave up, and concave down. Also identify point(s) of inflection, extrema, and intercepts, and provide graphs of  and . Be sure to justify all statements both graphically and analytically.

Solve to locate the extrema and determine the increasing/decreasing intervals.

Solve to determine points of inflection and the intervals of concavity.