Final answer:
If the point (8,4) is on the graph of an even function, the point (-8,4) must also be on the graph.
Step-by-step explanation:
An even function is a function that satisfies the property f(x) = f(-x) for all values of x in the domain of the function. If the point (8,4) is on the graph of an even function, then the point (-8,4) must also be on the graph. This is because substituting x = -8 into the function would give the same y-value as when x = 8.