--- title: "Slope of the line (differential)" slug: "slope-of-the-line-differential" updated: 2021-04-27T19:01:09Z published: 2021-04-27T19:01:09Z canonical: "userguide.dataclassroom.com/slope-of-the-line-differential" --- > ## Documentation Index > Fetch the complete documentation index at: https://userguide.dataclassroom.com/llms.txt > Use this file to discover all available pages before exploring further. # Slope of the line (differential) Having opened the advanced regression features menu on the graph controls, you can choose to add markers showing the **slope of the regression line** at each point. These slope values are the **first differential** of the regression equation. So, for example, if your data was a series of **positions in time**, then the slope values will represent the **speed at these points in time**. ![](https://cdn.document360.io/62f8f41e-e041-42c4-b9bc-8ae1eb45d064/Images/Documentation/image-1618309518115.png) The "**Create new column from these values**" button allows you to create and name a new column with the values, so you can then for example plot the speeds: ![](https://cdn.document360.io/62f8f41e-e041-42c4-b9bc-8ae1eb45d064/Images/Documentation/image-1618309714072.png) In this example, the speed is shown increasing exactly linearly. This is a consequence of the regression line being a quadratic equation, the differential of which will always be a linear equation.