The picture provided has a question of its own. The range of the graph shown is from y=-1 to (almost) y=6. The open circle tells you that the point (-11, 6) is not included in the graph. The range could be written as ...
range: -1 ≤ y < 6
In interval notations, this is ...
[-1, 6)
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There is no graph of a quadratic, so we cannot answer any questions related to it.
