QuestionAugust 24, 2025

Write this set using interval notation: xin Rvert xleqslant 7 (-infty ,7) (-infty ,7] [7,infty ) [7,-infty )

Write this set using interval notation: xin Rvert xleqslant 7 (-infty ,7) (-infty ,7] [7,infty ) [7,-infty )
Write this set using interval notation:  xin Rvert xleqslant 7 
(-infty ,7)
(-infty ,7]
[7,infty )
[7,-infty )

Solution
4.0(147 votes)

Answer

(-\infty, 7] Explanation 1. Identify the inequality The set \{ x \in \mathbb{R} \mid x \leqslant 7 \} represents all real numbers less than or equal to 7. 2. Determine interval notation Since x can be any number up to and including 7, use (-\infty, 7] to represent this range.

Explanation

1. Identify the inequality<br /> The set $\{ x \in \mathbb{R} \mid x \leqslant 7 \}$ represents all real numbers less than or equal to 7.<br /><br />2. Determine interval notation<br /> Since $x$ can be any number up to and including 7, use $(-\infty, 7]$ to represent this range.
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