What is the domain of this function?

Answer:
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Question 3 is asking you to drag the blue points in a graph to cover the shaded region on the graph that represents the domain. In this case, the domain is the set of all x-values where the function is defined. By dragging the blue points, you can adjust the domain to include different x-values.
Question 4 is asking for the domain of a function represented by an inequality. The inequality given is 2≤x≤6, which means that x can take any value between 2 and 6, inclusive. The open points in the inequality indicate that the endpoints, 2 and 6, are included in the domain.
So, the domain of the function is all the x-values that satisfy the inequality 2≤x≤6. This means that any x-value between 2 and 6, including 2 and 6 themselves, is part of the domain.