Final answer:
Generally, a salesperson must work under a supervising broker, but they can practice real estate on their own if dealing with their personal property.
Step-by-step explanation:
A salesperson can practice real estate without a supervising broker only in very specific instances. Generally, all real estate salespersons must work under a licensed broker to oversee their transactions and ensure compliance with state and federal real estate laws. However, a salesperson may act without a broker if they are involved in a transaction for their own personal property. In this case, because they are acting as an individual rather than as an agent of others, they do not require broker supervision. It's important for anyone in the real estate industry to understand their local laws, as the regulations can vary by state.