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How do you use a number line to represent an inequality?PowerPoint Presentation

How do you use a number line to represent an inequality?

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How do you use a number line to represent an inequality?

x > 4 or x ≤ -9

In this lesson you will learn how to represent the solution set of an inequality by creating a number line.

A variable is a letter or symbol that represents an unknown number or set of numbers. For example, x or ★ could be used to represent unknown numbers.

An inequality has more than 1 solution.

represents: number or set of numbers. For example, x or

An open circle

> greater than

< less than

represents:

A closed circle

≥greater than or equal to

≤ less than or equal to

Using the incorrect circle to represent the inequality symbol.

Remember:

≥, ≤

>, <

closed circle

open

circle

Create a number line to represent the solution set of symbol. x > 2.

- Write it in words.

2. Identify the type of circle needed.

3. Identify the shading.

Create a number line to represent the solution set of symbol. x > 2.

- X is greater than 2.

2. Open Circle because x ≠ 2.

3. Shade values greater than 2.

Create a number line to represent the solution set of symbol. x > 2.

The shaded portion includes all numbers greater than 2!

In this lesson you symbol. have learned how to represent the solution set of an inequality by creating a number line.

Create a number line to represent the solution set of symbol. x ≤-4.

Given an inequality on a number line, identify five values that are in the solution set and five values that are not in the solution set.

Create a number line to represent the solution set of x that are in the solution set and five values that are not in the solution set.≤-15.

Which number line represents x > 2? that are in the solution set and five values that are not in the solution set.

A

B

C

D

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