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Inequalities and Negative Numbers

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Inequalities and Negative Numbers, a selection of answers from the Dr. Math archives.

Reversing the Inequality Symbol
Why do we reverse the inequality symbol when dividing/multiplying by a negative number?

Reversing the Inequality
Why does the inequality sign reverse when you multiply by a negative number?

Negatives and Inequalities
Why when we multiply or divide an inequality by a negative number do we reverse the inequality sign?

Inequalities and Negative Numbers
When multiplying both sides of an inequality by a negative number, why does the inequality sign change?

Why Flip the Inequality Sign?
Please tell me why you flip the inequality sign when dividing by a negative number.

Inequality Sign Switch
How do you solve the inequality (-1/8)w < 3 ?

Adding and Subtracting Inequalities
Can you explain the rules? What if two inequalities are in the same or opposite directions?

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Middle School Algebra
Middle School Negative Numbers
High School Algebra
High School Negative Numbers
Index of Selected Answers to Common Questions

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