Answer
Interval Notation: $(-1,1]$
Inequality Form: $ -1\lt x\leq 1$
Work Step by Step
Since the bracket notation is open at $-1$ and closed at $1$ then the interval is $(-1,1]$.
In terms of inequality, we have $ -1\lt x\leq 1$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Appendix A - Review - A.10 Internal Notation; Solving Inequalities - A.10 Assess Your Understanding - Page A87: 16
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