## Abstract

You should be familiar with the method of representing numbers as points on a number line. A horizontal line, or *axis*, is drawn, with two special points marked 0 and 1; 0 is called the *origin*, and is to the left of 1. The positive number *x* is represented by a point on the axis whose distance to the right of 0 is *x* times as far as the distance from 0 to 1. We usually say the distance from 0 to 1 is the *unit* distance, and say the point representing x is *x units to the right of the origin*. Negative numbers go to the left of 0, and — *x* is *x* units to the left of the origin.

## Keywords

Number Line External Demand Technology Matrix Augmented Matrix Ticket Sale
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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## Copyright information

© Springer Science+Business Media New York 2004