​Increasing, Decreasing, and Constant Intervals (over the domain)

• ​Always read intervals from left to right

• ​Always use parenthesis

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• ​Interval A: Increasing (0, 2)

• ​Interval B: Constant (2, 4)

• ​Interval C: Decreasing (4, 5)

• ​Interval D: Increasing (5, 8)

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• ​Increasing (0, 2) U (5, 8)

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​Increasing, Decreasing, and Constant Intervals (over the domain)

Constant (-5, -4) U (0, 1)

Decreasing (-4, 0) U (2, )

Increasing (1, 2)

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​A common mistake is to say the graph is increasing from -1 to +1. That would be reading along the

y-axis. Intervals are read over the domain, (x-axis) left to right only!

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​Week 4 Assignment

​Finish Questions 7-10 on the worksheet