2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/230946We investigate Baire-one functions whose graph is contained in a graph of usco mapping. We prove in particular that such a function defined on a metric space with values in $\mathbb{R}^d$ is the pointwise limit of a sequence of continuous functions with graphs contained in the graph of a common usco map.General Topology54C60; 54E45; 26A21text