How to Write an Inequality Given a Number Line

This video tutorial teaches how to write inequalities from a number line representation. It begins with an introduction to the concept, followed by a review of key concepts such as variables, solutions, and inequality symbols. The tutorial then provides a step-by-step guide on analyzing a number line to write the corresponding inequality, focusing on identifying the circle location, type, and shading direction. The lesson concludes with a summary of the key points covered.

What does a variable represent in the context of inequalities?

• A fixed number

• An unknown number or set of numbers

• A mathematical operation

• A specific equation

What does an open circle on a number line indicate?

• The variable is greater than or equal to the value

• The variable is equal to the value

• The variable is not equal to the value

• The variable is less than or equal to the value

How is a closed circle used on a number line?

• To represent a variable that is greater than the value

• To represent a variable that is less than the value

• To show that the variable is not equal to the value

• To indicate the variable is equal to the value

When analyzing a number line, what is the first step to write an inequality?

• Identify the direction of shading

• Identify the type of circle

• Identify the numbers in the solution set

• Identify the circle location

If the shading on a number line is to the right of an open circle at -5, what inequality does it represent?

• X is equal to -5

• X is greater than -5

• X is less than or equal to -5

• X is less than -5