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  
 Graph of a Linear Equation:  The graph of all solutions of a linear equation, resulting in a straight line.

 

 

 

 

 

When a linear equation is written in slope-intercept form, it is easy to find the slope and y-intercept of the line, making the graph of the linear equation easy to create. In the above example, y = 3x + 2, the slope is 3 and the y-intercept is 2.

To create the graph, we first plotted the y-intercept by putting a point on the y-axis at 2. From that point, we used the slope of 3 (or 3/1) to tell us to move up 3 units and right one unit. We plotted a second point there. After we connected the two points, our line was created.