Global extrema refer to both the maximum and minimum values of a function over its entire domain.
Topic 5.2: 5.2 Extreme Value Theorem, Global vs Local Extrema, and Critical Points
Global Extrema cheat sheet for homework
The maximum value is the highest point that a function reaches within a given interval.
The minimum value is the lowest point that a function reaches within a given interval.
Local extrema are points on a graph where the function reaches either a maximum or minimum value, but only within a small neighborhood of that point.