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
 Challenge
 Perpendicular Lines:  Two lines are perpendicular if they intersect at a right angle.

Comparing Lines: Examine the relationship between the coefficients in two linear functions if they are parallel, perpendicular, share the same intercept, and more.

Forming a Square: Find four equations whose graphs are oblique (slanted) lines that will intersect to form the vertices of a square.