Introduction

You study more → marks increase
You gain experience → salary increases
You skip classes → attendance decreases

Sounds familiar?
That’s exactly what Linear Regression does — it judges relationships.

Linear Regression tries to find a straight-line relationship between cause and effect and uses it to predict the future.

In this blog, we will understand:

• What Linear Regression is
• How it finds the best fit line
• How it learns using Gradient Descent

Linear Regression is one of the simplest and most important algorithms in Machine Learning and Statistics. It is widely used for prediction and trend analysis. In this blog, we will understand linear regression step by step, starting from basic concepts to equations and interpretation.