Domain and Range - How to Find Given a Graph

How to find the Domain and Range given a graph. We discuss what the domain and range represent. We also go through 3 examples and show you how to find them in this free math video tutorial by Mario's Math Tutoring.

0:15 What is the Domain and What is the Range
0:26 How to Find the Domain and Range
0:27 Example 1 Writing the Domain & Range in Inequality Notation and Interval Notation
1:58 Difference Between a Closed Point and an Open Point
2:19 Example 2 Using a Vertical Line to Analyze the Domain
3:37 Example 3 Finding Domain & Range Given the Graph
4:19 Symbol Used for All Real Numbers

Related Videos:

Inequality Notation Vs. Interval Notation

How to Find Domain Given the Equation

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[MariosMathTutoring]

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[gracebonnell]

this has helped me SO much. such a simple way to understand something that's given me trouble for so long. I truly can't thank you enough.

[unfair]

I’m currently taking an exam and watching this video at the same time, thanks for the help Mario!

[dnadlicki]

You are so good at teaching math. Thank you for taking the time to do these videos. I have always struggled in math and you are truly making it much easier to understand. Thank you!

[fouzalalban]

this was so helpful thank you so much! Anyone who reads this have a good day :)

[tellis]

Thank you so much. I understood now. I am too old to be back in school so all these concepts have been buried somewhere in my mind. But now I got it. Ty again

[iamadamselindistress]

I’m gonna start crying because this actually helped oh my god finally

[christopherhernandez]

How do I know which way the symbol goes and if it has a line under it

[kaemantatum]

What if the graph was flipped would everything be all real numbers