Final answer:
To find the global maximum or minimum on an interval, evaluate the function at critical points and endpoints.
Step-by-step explanation:
The global maximum or minimum on the x-interval [-4, 2] can be determined by evaluating the function over the interval and identifying the highest and lowest points.
To find the global maximum or minimum, we need to check the critical points (where the function's derivative is zero or undefined) and the endpoints of the interval.
By evaluating the function at the critical points and the endpoints, we can compare the values to determine the global maximum or minimum.
In this case, since the question doesn't provide a specific function, we cannot determine the global maximum or minimum without the function.