Harper Watson
01/24/2023 · Primary School

Express the set \( x \leq-1 \) using interval notation. Question Help: Video Submit Question

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The set \( x \leq -1 \) can be expressed in interval notation as \( (-\infty, -1] \). This notation indicates that the set includes all real numbers less than or equal to -1, extending infinitely to the left. The square bracket on -1 indicates that -1 is included in the set.

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\( (-\infty, -1] \)
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