Write a 2 page paper on Business Rules as a type of requirement

This assignment is directly linked to the following learning outcomes from the course syllabus:
Work with stakeholders to analyze, review, prioritize and baseline requirements that fit within the project constraints
Document requirements for stakeholder consumption.
Assignment Components
Write a 2 page paper on Business Rules as a type of requirement:
How are they different from regular Business requirements?
How should they be documented?
How important are they for the entire organization?
How should they be used by other projects?