Learn Before
Example

Graphing x=βˆ’3x = -3 by Plotting Points

To graph the vertical line equation x=βˆ’3x = -3, note that this equation has only one variable and states that xx is always βˆ’3-3, regardless of the value of yy. To graph this using the Point-Plotting Method, construct a table of values by filling in βˆ’3-3 for all the xx-coordinates. Because xx does not depend on yy, any number can be chosen for the yy-coordinates. For instance, selecting yy-values of 11, 22, and 33 yields the ordered pairs (βˆ’3,1)(-3, 1), (βˆ’3,2)(-3, 2), and (βˆ’3,3)(-3, 3). Plotting these points on a rectangular coordinate system and connecting them with a straight line results in a vertical line that passes through the xx-axis at (βˆ’3,0)(-3, 0).

0

1

Updated 2026-05-26

Contributors are:

Who are from:

Tags

OpenStax

Intermediate Algebra @ OpenStax

Ch.3 Graphs and Functions - Intermediate Algebra @ OpenStax

Algebra

Related