The percent p of impurities that can be removed from the waste water of a manufacturing process at a cost of C dollars is given by 
. Find any C values within the domain of the problem at which the rate of change of p with respect to C does not exist.
Definitions:
Competitive
A characteristic of businesses or individuals that strive to provide products or services in a manner that outperforms their rivals.
Type A Orientation
The way people are characterized as competitive, impatient, aggressive, and achievement oriented.
Aggressive
A behavior characterized by boldness or assertiveness, with a possible inclination to dominate or challenge others.
Personality Types
A method for categorizing individuals into specific groups based on their patterns of behavior, thoughts, and feelings.
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