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

Mathematics

1 answer:

Sedaia [141]3 years ago

7 0

Answer: $(-\infty, 7)$

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 $-\infty < x < 7$

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

To write $-\infty < x < 7$ in interval notation, we write $(-\infty, 7)$

The curved parenthesis tell us to exclude the endpoint.

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