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What’s the answer please help

What’s the answer please help-example-1

1 Answer

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Answer:


\boxed{\text{A. }\math{\left \{ x \, | \, x \in \mathbb{R}, x < -2 \right \}}}}

Explanation:

The open circle means that the point is not included in the solution set, and the arrow pointing left means that all numbers less than -2 are members.

In set-builder notation, each term has a special meaning. The braces enclose the members of the set.

Here's how you translate the notation,


\begin{array}{rcl}\\\left \{ &amp; = &amp; \text{The set of}\\x &amp; = &amp; \text{all x values}\\| &amp; = &amp;\text{such that}\\x &amp; = &amp; x\\\in &amp; = &amp;\text{is a member of}\\\mathbb{R}, &amp; = &amp;\text{all real numbers, and}\\x < -2 &amp; = &amp; \text{x is less than -2}\\\end{array}\\\text{The answer is }\boxed{\textbf{A. }\mathbf{\left \{ x \, | \, x \in \mathbb{R}, x < -2 \right \} }}}

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