Question

4.2 solving inequalities by adding and subtracting
phyllis kidd
4.2 solving inequalities by adding and subtracting
misskim
multiple - choice question
on top of - 1, should i have a closed circle or an open circle?
closed circle
open circle
rewatch

Explanation:

Step1: Recall inequality graphing rules

When graphing an inequality like \(x\leq a\) (where \(a = - 1\) here), the symbol \(\leq\) means the value \(a\) is included in the solution set.

Step2: Determine circle type

A closed circle is used when the number is included in the solution set (for \(\leq\) or \(\geq\) inequalities), and an open circle is used when the number is not included (for \(<\) or \(>\) inequalities). Since \(x\leq - 1\) includes \(-1\), we use a closed circle.

Answer:

closed circle