Explanation:
The domain is all the possible x-values of a function. This is the set of input values for a function. Now, consider the two points (-7, 7) and (7, 5).
Your domain is -7 <= x <= 7.
Answer:
The two end points must not be included. The values of then end points read as points are (-7,0) and (7,0). The domain is the x value's range -7<x<7. That's the answer.
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