Graphing equalities

Graphing equalities is probably is the easiest thing to do. If you are familiar with a number line, you should have no problems.

An equation is a mathematical sentence with an equal sign. Equations such as x = -5 and x = 2 are examples of equalities. Equalities such as x = 2 are what we will be dealing with.

The procedure to follow to graph x = -5 and x = 2 is simple and straightforward.

You must know how to graph equalities before learning how to graph linear inequalities.

Simply locate on the number line the value of x or any other variables used for the equality and make a shaded circle at the value of x

Example #1

Here is how to graph x = 3

Just locate 3 on the number line and draw a shaded circle at 3.

Graph of x = 3 on the number line
Example #2

Here is how to graph x = -5

Just locate -5 on the number line and draw a shaded circle at -5.

Graph of x = -5 on the number line
Example #3

Here is how to graph x = 6

Just locate 6 on the number line and draw a shaded circle at 6.

Graph of x = 6 on the number line
Example #4

Here is how to graph x = -2

Check the graphing equalities quiz below in order to see how well you understand this lesson.

Graphing inequalities