Solving and Graphing Inequalities

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What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, greater than or equal to, or less than or equal to the other.

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What does the symbol '≤' mean?

Back

The symbol '≤' means 'less than or equal to'.

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What happens to the inequality sign when you multiply or divide by a negative number?

Back

The inequality sign flips when you multiply or divide both sides of the inequality by a negative number.

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Front

What does the symbol '>' mean?

Back

The symbol '>' means 'greater than'.

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Draw a number line, place a closed circle on 16, and shade to the left to indicate all numbers less than or equal to 16.

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Back

Front

What does the symbol '≥' mean?

Back

The symbol '≥' means 'greater than or equal to'.

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