Write interval notation.
-$$\{ x \mid x \leq - 4 \}$$
A) $[ - 4 , \infty )$
B) $( - \infty , - 4 ]$
C) $( \infty , - 4 )$
D) $( - 4 , \infty )$

Question

Quizplus · Accepted Answer

The inequality symbol is $\leq$, which means "less than or equal to". The bracket should be on the side of the numbers that are included in the set. Since $x$ is less than or equal to $-4$, the set includes $-4$ and all numbers less than $-4$. Therefore, the correct interval notation is $( - \infty , - 4 ]$.

Write Interval Notation {x∣x≤−4}\{ x \mid x \leq - 4 \}{x∣x≤−4}

Write Interval Notation $\{ x \mid x \leq - 4 \}$