Find the approximate change in z when the point 
changes from 
to 
. 
; from 
to 
Definitions:
Employers
Employers are individuals or organizations that hire and pay people to perform specific jobs.
Workers
Individuals engaged in any form of labor, whether employed by organizations, self-employed, or working as freelancers, contributing to the production of goods and services.
Producer Surplus
The difference between the amount a producer is paid for a good compared to the minimum amount they would be willing to accept for it, a measure of producer welfare.
Price
The sum of money needed to buy a product, service, or commodity.
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