By Pratham Barekal .
Code of this whole document - https://github.com/Quartz1605/RegressionsFromScratch/tree/main/LinearRegression
$$ Y=β0+β1X1+β2X2+⋯+βnXn+ϵ $$
where
Y → stands for output.
X1, X2, X3…. Xn → Predictor variables.
ϵ → Random Noise present already in the data.
β1,β2…βn → Coefficients that represent the impact of each feature on Y
β0 → Intercept
Linear Regression uses only one input variable to predict an output, while Multiple Linear Regression incorporates several variables to make predictions, making it more suitable for real-world scenarios.