Predict car prices from mileage using linear regression from scratch in Python.

• Train a linear regression model with gradient descent
• Normalize mileage data for better predictions
• Save and load model parameters
• Estimate price interactively
• Visualize the dataset and regression line

• Python 3.11+

• Install dependencies:

  pip install -r requirements.txt

python train.py

python estimate.py

python plot.py