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7-71.

for the function graphed at right.

  1. When is at a maximum on ?

    An integral represents the area under a curve. At which point is the area greatest?

  2. Is increasing, decreasing, or both over the interval ?

    Strictly Increasing. (Justify.)

  3. Evaluate , , and .

  4. List the interval(s) on for which .

    Since ,
    .