Maximum and minimum workflows on a TI-84 style calculator work best when you already have a rough idea where the turning point lives. The graph helps with location, while the numeric feature helps refine the answer.
Graph first, refine second
A good visual estimate makes the numeric process far easier. Without it, students often set incorrect bounds and wonder why the calculator returns nonsense.
Know whether you need local or absolute behavior
A graphing tool can help find a nearby turning point, but some problems ask for an interval-based absolute maximum or minimum. That is a slightly different question.
Interpret the coordinate pair correctly
A maximum or minimum result is often a point, not just a y-value. Make sure you know whether the problem wants the input, the output, or both.
Key takeaways
- Rough graph location makes max/min workflows much easier.
- Local and absolute extrema are different ideas.
- The output may require both x and y interpretation.
Independent note
This guide explains an independent TI-84 style practice workflow and is not official device documentation.