Question

PRECISION Should you use an open circle or a closed circle in the graph of

the inequality b 2 -42? Explain.

Answer 1

When graphing a linear inequality on a number line, use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to". To CHECK an inequaltiy, it is not possible to test every value.

Explanation: