Answer:
line authority
Explanation:
Line authority can be defined authority or power given to an individual in a supervisory role to manage and mandate his subordinates to help an organization fulfil its objectives.
From the above definition, it is seen that Timothy has a group of 7 persons under him which means he is in a supervisory role or position within the company. As the supervisor, Timothy assigns duties to the members of the group after which he reports to a higher authority.
Cheers.
