Dictionary
search :       browse : 
A B C D E F G H I J K L M
  N O P Q R S T U V W X Y Z
         
Description
Related Terms
Everyday Examples
Interactive Checkpoint
More Information
Challenge
How to use this dictionary
Contact
 Description  
 y-axis:  The vertical number line on the Cartesian coordinate plane.

This drawing shows an example of a Cartesian coordinate plane. The horizontal line is the x-axis and the vertical line is the y-axis.