I have the following inequality listed in a textbook $-1 \le x = y \le 1$. What area is this describing and what does the equal sign between the x and y indicate?
Thank you.
2026-04-28 13:49:50.1777384190
Meaning of inequality
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This basically means that $x$ is equal to $y$ and that they are both $-1\geq$ and less than or equal to $1.$