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2 December, 16:11

How do you know when a function is increasing by looking at its graph

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  1. 2 December, 16:32
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    If f′ (x) > 0, then f is increasing on the interval, and if f′ (x) < 0, then f is decreasing on the interval. This and other information may be used to show a reasonably accurate sketch of the graph of the function. Example 1: For f (x) = x 4 - 8 x 2 determine all intervals where f is increasing or decreasing.
  2. 2 December, 17:18
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    The way to tell if a function is increasing via its graph is by seeing if the value of y is increasing as the value of x increases, which tends to look like the line heading towards the top right of the plane.
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