Learn Before
Example

Graphing y=−1y = -1 by Plotting Points

To graph the equation y=−1y = -1, recognize that it features only one variable, indicating the yy-value is a constant −1-1 no matter what the xx-value is. To proceed, build a table of values where every yy-coordinate is −1-1, and pick arbitrary values for the xx-coordinates (such as 00, 33, and −3-3), producing ordered pairs like (0,−1)(0, -1), (3,−1)(3, -1), and (−3,−1)(-3, -1). Plot these ordered pairs on the coordinate plane and draw a line connecting them. Consistent with equations of this form, the resulting graph is a horizontal line intersecting the yy-axis at −1-1.

0

1

Updated 2026-06-03

Contributors are:

Who are from:

Tags

OpenStax

Intermediate Algebra @ OpenStax

Ch.3 Graphs and Functions - Intermediate Algebra @ OpenStax

Algebra

Related
Learn After