# Real Line

The real line is a line with a fixed scale so that every real number corresponds to a unique point on the line.

Real line is a middle school-level concept. It is listed in the California State Standards for Grade 7.

### Prerequisites

Line: | A line is the infinite extension in both directions of a line segment, giving the path of shortest distance between two points in Euclidean space. |

Real Number: | A real number is a number corresponding to a point on the real number line. |