Algebra 1 · Inequalities
Flip the Inequality
Algebra 1 · Inequalities
Definition
You flip the inequality symbol whenever you multiply or divide both sides by a negative number.
Examples
- −2x < 6 → x > −3 (flip).
- −x ≥ 4 → x ≤ −4 (flip).
Key rule
Multiplying or dividing by a negative reverses the direction.
Memory hook
Negative flip − the sign turns around.