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How do I Express the inequality x < 7 using interval notation.

Sagot :

Answer:  [tex](-\infty, 7)[/tex]

You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.

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Explanation:

Think of x < 7 as writing [tex]-\infty < x < 7[/tex]

So x is between negative infinity and 7, excluding both endpoints.

To write [tex]-\infty < x < 7[/tex] in interval notation, we write [tex](-\infty, 7)[/tex]

The curved parenthesis tell us to exclude the endpoint.

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