Inequality Graphing On Number Line Math

It cannot be any other number except for 2.

Inequality graphing on number line math. The first inequality is x2. An updated version of graphing inequalities no music in this video you will learn how to basics for graphing inequalities on a number line. Graphing inequalities on a number line number line recall that a number line is a horizontal line that has points which correspond to numbers. If the sign does not include equal to or leave the circle unfilled in.

To plot an inequality such as x 3 on a number line first draw a circle over the number e g 3. X 3 and x 8 if the variable is in the middle of two inequalities then you will use or. To graph this on a number line you simply put a dot at 2 to show that there is only possible solution. More lessons for grade 8 math math worksheets examples solutions videos and worksheets to help grade 8 students learn how to graph inequalities on a number line.

Now an inequality uses a greater than less than symbol and all that we have to do to graph an inequality is find the the number 3 in this case and color in everything above or below it. Then if the sign includes equal to or fill in the circle. This time we again have the dot which is not filled in and an arrow going up the number line to show that x is greater. Inequalities show that two expressions are not equal.

We just put a little dot where the 3 is right. Finally draw a line going from the circle in the direction of the numbers that make the inequality true. It may be printed downloaded or saved and used in your classroom home school or other educational environment to help someone learn math. For instance look at the top number line x 3.

The arrow going down the number line shows that x is any number smaller than 2. For example a number can be greater than greater than less than less than less than less than or equal to and not equal to. The points are spaced according to the value of the number they correspond to. There is a dot on the two that is not filled in to show that it is not equal to 2.

Scroll down the page for more examples and solutions on how to graph inequalities on a number line. A graph pointing in two different directions will us the word and for example. Graphing x a before we graph an inequality on a number line let s look at how to graph an expression with an equals sign. The following diagram shows how inequalities can be represented on the number line.

The second inequality is x 3.