Answer:
The correct options are 3 and 4.
Explanation:
From the given graph it is clear that the turning points of the graph are (-1.6,-56), (0.8,11.4) and (2,0).
Using these points we can say that,
1. The given function increasing on [tex](-1.6,0.8),(2,\infty)[/tex].
2.The function is decreasing on [tex](-\infty,-1.6),(0.8,2)[/tex].
In interval [–2.5, –1.6), the function is decreasing.
In interval [–2, –1], first the function is decreases, after that the function increases.
In interval (–1.6, 0], the function is decreasing.
In interval [0, 0.8), the function is decreasing.
In interval (0.8, 2), the function is decreasing.
Therefore, the correct options are 3 and 4.
