How to find domain and range of function graphs

Here’s a super simple way to find domain and range of function graphs. You can get the practice cards and the poster with the arrows free on my blog linked below.

Here I am using a pen to trace left to right to find domain, then bottom to top to find range. If my pen hits an arrow, I’ll record infinity or negative infinity as the start or end of the interval.

[regretz]

I’m in eighth grade and this actually really just helped me thx

[Rbisthesmallestbird]

This really helps me so much with another method to understand the domain and range of graphs!Thank you so much madam!

[eagan_]

Good god I'm glad i understood this enough to find that part of my brain that remembers how the rest of this works

[krishankunalbhardwaj]

I only remember the sing of the domain and range(-indinity or +infinity) at each quadrant

[seventytwohours]

how is the domain negative and positive infinite

[evierigby]

Where can I find the Domain and Range cheat sheet on your website? I can't find it easily.

[jingalalala]

Am I the only one who doesn't get it....

[rosittaluckwin]

What if the graph is a parabola from origin
What would be the domain and range?

[Cookie-]

Why do they make it way harder they make us do it like 6<x<5

[eller]

I just had a revelation thanks to you!! Are quadrants 3&4 negative infinity and quadrants 2&1 are positive infinity? And then wherever the arrow is directing toward, tells you what infinity??

[sugoi]

School is mentally damaging my will to live

[pylon]

I’ve tried so hard on YouTube and can’t get views like this. It’s incredible how messed up the algorithm is today 😔