> For the complete documentation index, see [llms.txt](https://ondrej-kvasnovsky-2.gitbook.io/handbook-of-hidden-data-scientist-python/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ondrej-kvasnovsky-2.gitbook.io/handbook-of-hidden-data-scientist-python/machine-learning/supervised-learning/linear-decision-surface.md).

# Linear Decision Surface

When the line which divides labels is straight, we call it linear decision surface. Data is transformed into decision surface by a line that divides the data. That said, we can use this line to categorize new data points.

![](https://463299088-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M3wXpaYFUfPiqG2WRb2%2F-M3wY0wnXPvGBdZ6_Cbt%2F-M3wY5Q_3EePwFXlyxkS%2Fsupervised-linear-decision-surface.png?generation=1585858864259193\&alt=media)