SUMMARY
The TI-89 calculator does not directly support solving inequalities using the 'solve' command as it does for equations. Users must analyze the regions defined by the equality of the inequality to determine where the inequality holds true. Specifically, one should check a point between the solutions to ascertain whether the result is greater than or less than the boundary values. This method allows for a systematic approach to solving inequalities on the TI-89.
PREREQUISITES
- Understanding of inequalities and their properties
- Familiarity with the TI-89 calculator interface
- Knowledge of the 'solve' command functionality
- Basic algebraic skills for testing points between solutions
NEXT STEPS
- Research how to use the TI-89 'solve' command for equations
- Learn about testing intervals for inequalities in algebra
- Explore graphical methods for visualizing inequalities on the TI-89
- Study the concept of critical points in inequality solutions
USEFUL FOR
Students, educators, and anyone using the TI-89 for solving mathematical inequalities will benefit from this discussion.