# Representing and Comparing Real Numbers

### Popular Tutorials in Representing and Comparing Real Numbers

#### How Do You Find a Solution Set When You Have A Replacement Set?

Trying to figure out if the values in a replacement set are part of the solution set to an inequality? Learn how to find the answer to that question with this tutorial!

#### What's a Set?

This tutorial will help you understand what a set is, and the different kinds of sets that you may see when you're working on algebra problems :)

#### What's an Inequality?

Inequalities come up all the time when you're working algebra problems. In this tutorial you'll learn what an inequality is, and you'll see all the common inequality symbols that you're likely to see :)

#### How Do You Figure Out Which of Two Fractions is Bigger?

Comparing fractions with unlike denominators? Don't want to find a common denominator? You don't have to if you take the cross product! Learn how to do this and make the comparison in this tutorial.

#### What's a Venn Diagram, and How Do You Find the Intersection and Union of a Set?

Venn Diagrams are really great tools for visualizing sets, especially when it comes to how sets intersect and come together. Check out this tutorial and see what we mean!

#### How Do You Name a Set That's Graphed on a Number Line?

If you have ever stared at a number line with dots on it and wondered 'How could I summarize these dots?', then this is the tutorial for you!

#### How Do You Graph a Set on a Number Line?

Number lines are great ways to represent a group of numbers, and in this tutorial you'll see how to graph a group of numbers on a number line

#### How Do You Graph an Inequality or an Infinite Set on a Number Line?

Number lines are really useful in visualizing an inequality or a set. In this tutorial, you'll see how to graph both. Take a look!

#### How Do You Write an Inequality from a Number Line Graph?

Writing inequalities from a graph on a number line isn't so bad if you know what to do. Watch this tutorial to learn how!

#### How Do You Solve a Word Problem By Writing an Inequality?

Got an inequality in a word problem? This tutorial will show you how to define variables, translate a word problem into an inequality, and understand what it all means!

#### How Do You Find a Union and Intersection from a Venn Diagram?

Venn Diagrams are a convenient way to figure out the union and intersection of sets. Use this tutorial to get some practice with union, intersection, and Venn Diagrams.

#### How Do You Graph the Intersection of Two Inequalities?

Number lines help make graphing the intersection of two inequalities a breeze! This tutorial shows you how to graph two inequalities on the same number line and then find the intersection. Take a look!

#### How Do You Graph the Union of Two Inequalities?

Number lines help make graphing the union of two inequalities a breeze! This tutorial shows you how to graph two inequalities on the same number line and then find the union. Check it out!

#### How Do You Write Inequalities in Set Builder Notation?

Need some extra practice converting solution phrases into set builder notation? This tutorial was made for you! Follow along as this tutorial shows you how to dissect each phrase and turn it into a solution in set builder notation.

#### What Are Some Words We Use When We Have Inequalities?

Knowing the definition for a compound inequality is one thing, but being able to identify one in a word problem or phrase can be an entirely different challenge. Arm yourself by learning some of the common phrases used to describe a compound inequality and an absolute value inequality.

#### How Do You Determine if a Value is a Solution to an Inequality?

If you're not sure if a value is a solution to an inequality, you an always plug it in and see. This tutorial shows you how to determine if a value is a solution to an inequality.

#### How Do You Put Real Numbers in Order?

Ordering numbers from least to greatest? Are the numbers in different forms? To make comparing easier, convert all the numbers to decimals. Then, plot those decimals on a number line and compare them! This tutorial shows you how!