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expeople1 [14]
3 years ago
8

Write the set using interval notation. {x | x ≠ −2, 8}

Mathematics
1 answer:
Viefleur [7K]3 years ago
6 0

As a set it tells that x can be anything but -2 and 8. For -2, we write our interval so that it includes everything but 2.

(-∞, -2) ∪ (-2,....)

We use the union because it could be in one interval or the other, and we use parentheses to exclude -2. Now we repeat it with 8.

(-..., 8) ∪ (8, ∞).

Lastly we put both together.


The set in interval notation is (-∞, -2) ∪ (-2, 8) ∪ (8,∞)

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