Q. What inequality represents this interval?(−8,−1]Choices:(A) −8≤x<−1(B) −8<x≤−1(C) −8<x<−1(D) −8≤x≤−1
Identify Characteristics: Identify the characteristics of the interval (−8,−1]. The interval starts at −8 and ends at −1. The parenthesis around −8 indicates that −8 is not included in the interval, while the square bracket around −1 indicates that −1 is included in the interval.
Translate into Inequality: Translate the interval into an inequality. Since −8 is not included, we use a less than symbol for the lower bound. Since −1 is included, we use a less than or equal to symbol for the upper bound. This gives us the inequality -8 < x \leq -1.
Match to Choices: Match the inequality to the given choices. The inequality we found in Step 2 is -8 < x \leq -1, which corresponds to choice (B).