// freeCodeCamp · 8 January 2026

How Neural Networks Work – Explained Using the Straight Line Equation y = ax + b

Did you know that every data scientist who builds a complex neural network starts with a fundamental question, “How does the output change when the input changes?“ A straight line equation y = ax+b answers it in the simplest way possible. y can incre...

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@freecodecamp · Samyukta Hegde

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