(Requires Calculus)For the case of the multiple regression problem with two explanatory variables,show that minimizing the sum of squared residuals results in three conditions: 
Definitions:
Referent Power
is a form of influence based on the admiration one has for an individual or group and the desire to emulate them.
Specialized Knowledge
Expertise or skill in a specific area or field, typically acquired through training or experience, that sets individuals apart in their professional capabilities.
Self-managed Teams
Groups of employees who are given the authority and responsibility to manage themselves and make decisions about their work without direct supervision.
Decision Making
The mental act of choosing an option from a range of possible actions.
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