Q. What interval does this inequality represent?−7<x≤−1Choices:(A)(−7,−1](B)[−7,−1](C)(−7,−1)(D)[−7,−1)
Identify Endpoints: Identify the endpoints of the interval for the inequality -7 < x \leq -1. The endpoints are −7 and −1.
Check Inclusion: Check whether the endpoints are included or not. In the inequality -7 < x \leq -1, −7 is not included because the inequality is strict (indicated by "<"), but −1 is included because the inequality is non-strict (indicated by "\leq").
Determine Interval Type: Determine the interval that the inequality -7 < x \leq -1 represents. Since −7 is not included, we use a parenthesis (. Since −1 is included, we use a bracket ].
Write Interval Notation: Write the interval notation based on the previous steps. The correct interval notation is (−7,−1].