What are the responsibilities of the project manager in a matrix organization?

PROJECT MANAGEMENT
Base your answer on the book. I will provide access to the book online through vitalsource.com
Describe what a functional organization is. Make sure you discuss the advantages and disadvantages of this structure.
Describe what a matrix organization is. Make sure you discuss the advantages and disadvantages of this structure.
What are the responsibilities of the project manager in a matrix organization?
What is the role of a project management office? What organizational structure best supports having a project management office, and why?
What project organization(s) do you have experience with? What are the advantages and disadvantages of that project organization?
Book Access
Web page: https://www.vitalsource.com/
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Password: ci23694737
Book: Gido, J. & Clements, J.P. (2015). Successful project management, (6th Ed.). Thomson South-Western.