What is polynomial regression? How does polynomial regression improve our model performance?

Data Science, AI and ML
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#1

Polynomial regression in detail

#2

Polynomial Regression is a regression algorithm that models the relationship between a dependent(y) and independent variable(x) as nth degree polynomial.
Some points on how polynomial regression improve our model performance:
The growth rate of tissues
Progression of disease epidemics
Distribution of carbon isotopes in lake sediments.