Q. What interval does this inequality represent?−5<x≤−1Choices:(A) (−5,−1](B) [−5,−1](C) [−5,−1)(D) (−5,−1)
Identify Endpoints: Identify the endpoints of the interval for the inequality -5 < x \leq -1. The endpoints are −5 and −1.
Check Inclusion: Check whether each endpoint is included in the interval. For -5 < x, −5 is not included because the inequality is strict (less than, not less than or equal to). For x≤−1, −1 is included because the inequality is non-strict (less than or equal to).
Determine Interval: Determine the interval that the inequality -5 < x \leq -1 represents. Since −5 is not included, we use a parenthesis. Since −1 is included, we use a bracket. Therefore, the interval is (−5,−1].