Final answer:
The powers directly given to a principal in an agency contract are called express powers, which are clearly defined and articulated within the written agreement of the agency.
Step-by-step explanation:
The powers directly given to a principal in an agency contract are called express powers. These are the powers that are specifically granted in a written agreement, where the principal explicitly states what the agent is authorized to do on their behalf. It's similar to the concept of enumerated powers in the Constitution, which are explicitly stated in the text of the Constitution itself. In contrast, implied powers are those that are not specifically detailed but are necessary to carry out the express powers, and apparent powers are those that the agent seems to have based on their actions or the principal's behavior. Assumed powers, which are also known as inherent powers, are those that are considered essential for the agency's function but are not specifically granted in the agreement or by law.