Answer:
[–2.5, –2] [–2, –1.5] [1.5, 2] [2, 2.5)
Explanation:
To find the intervals, we have to refer the graph.
From x = [-2.5, -2][-2, -1.5] the graph moving down. It means it is decreasing.
From c = [1.5, 2][2, 2.5) the graph again moving down.
Therefore, the graph decreasing in the following intervals.
[–2.5, –2] [–2, –1.5] [1.5, 2] [2, 2.5)
Hope this will helpful.
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