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What interval does this inequality represent?\newline-7 < x \leq -1\newlineChoices:\newline(A)(7,1](-7, -1]\newline(B)[7,1][-7, -1]\newline(C)(7,1)(-7, -1)\newline(D)[7,1)[-7, -1)

Full solution

Q. What interval does this inequality represent?\newline7<x1-7 < x \leq -1\newlineChoices:\newline(A)(7,1](-7, -1]\newline(B)[7,1][-7, -1]\newline(C)(7,1)(-7, -1)\newline(D)[7,1)[-7, -1)
  1. Identify Endpoints: Identify the endpoints of the interval for the inequality -7 < x \leq -1. The endpoints are 7-7 and 1-1.
  2. Check Inclusion: Check whether the endpoints are included or not. In the inequality -7 < x \leq -1, 7-7 is not included because the inequality is strict (indicated by "<"), but 1-1 is included because the inequality is non-strict (indicated by "\leq").
  3. Determine Interval Type: Determine the interval that the inequality -7 < x \leq -1 represents. Since 7-7 is not included, we use a parenthesis ((. Since 1-1 is included, we use a bracket ]].
  4. Write Interval Notation: Write the interval notation based on the previous steps. The correct interval notation is (7,1](-7, -1].

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