To determine the y-value of the absolute maximum on the graph of a function \( h(x) \), you'd typically need either the function itself or a description of its graph, such as critical points or endpoints.
If you can provide the specific function \( h(x) \) or relevant details about it (like critical points, endpoints, or a specific interval), I would be able to help you find the y-value of the absolute maximum on its graph.