Find equations of the normal plane to 
at the point (2, 4, 8).
Definitions:
Gini Coefficient
A measure of income inequality within a population, ranging from 0 (perfect equality) to 1 (perfect inequality).
Mean Household Income
The average income earned by households in a specific geographical area, calculated by summing all incomes and dividing by the number of households.
Industrially Developed
Referring to countries or regions that have advanced economic bases, primarily in manufacturing and services, and high levels of income per capita.
Poverty Line
The fundamental amount of income necessary to afford a proper standard of living in a given nation.
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