Domain and Range in Inequality Notation

This video tutorial from Friendly Math 101 covers how to write domain and range in inequality notation, focusing on continuous graphs. It provides three examples, explaining how to determine the smallest and largest x and y values, and how to use open and closed circles to indicate inclusion or exclusion of values. The lesson concludes with an invitation to ask questions and subscribe for more tutorials.

What is the primary focus of the lesson in Friendly Math 101?

• Solving quadratic equations

• Graphing linear equations

• Writing domain and range in inequality notation

• Writing domain and range in set notation

Which notation is used for continuous graphs and data?

• Set notation

• Interval notation

• Inequality notation

• Scientific notation

What is the purpose of using inequality notation for domain and range?

• To graph linear functions

• To solve equations

• To simplify the representation of continuous data

• To list every point on the graph

In the first example, what is the smallest x-value on the graph?

• 1

• 0

• -2

• -3

For the first example, what symbol is used at x = -2?

• Less than or equal to

• Greater than or equal to

• Less than

• Greater than

What is the largest x-value in the first example?

• 4

• 5

• 3

• 6

In the first example, which x-value is included in the domain?

• -2

• 0

• 5

• 3.5

In the first example, which x-value is not included in the domain?

• -2

• 0

• 3.5

• 4

What is the smallest y-value in the first example?

• 2

• 1

• 0

• -1

Which symbol is used at y = -1 in the first example?

• Less than or equal to

• Greater than or equal to

• Greater than

• Less than