Math Homework. Do It Faster, Learn It Better.
Inequalities
Inequalitiesare mathematical sentences comparing two quantities that arenot equal(or possibly not equal). There are five inequality symbols:
is not equal to | |
is less than | |
is greater than | |
is less than or equal to | |
is greater than or equal to |
Graphing Inequalities in One Variable
The solutions of inequalities can be graphed on thenumber lineasrays. If the inequality is "strict" ( or ), we use anopen dotto indicate that the endpoint of the ray is not part of the solution. For the other types of inequalities ( and ), we use aclosed dotto indicate that the endpointispart of the solution.
Example:
See alsocompound inequalitiesandsolving linear inequalities.