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3-135.

If a function is increasing, such as the one at right, what must be true about ?Homework Help ✎

  1. Explain your idea using the graph at right.

  2. Use your idea to algebraically determine where is increasing.

Graph in the 1st and 3rd quadrants increasing.

If is increasing, then slopes are positive so .

Use the Power Rule to find .

Solve the inequality: .