Finding the domain and the range of a function that is given graphically. Created by Sal Khan.

Given the graph of a function, determine its domain or range.

The domain of a function is the set of all possible inputs for the function. For example, the domain of f (x)=x² is all real numbers, and the domain of g (x)=1/x is all real numbers except for x=0.

We break down the definition of the function given in set-builder form and plot the graph by connecting points on the cartesian plane. Domain and Range is calculated through visually …

So the domain here, the domain of g is going to be, "x is a member of the real numbers" "such that x does not equal zero," and the range is actually going to be the same thing. The range …

I understand finding the range of a function, but I'm still confused about how to find the domain. Using the first function from the example, what would be the domain and how would you find it?

Introduction to the domain and range of a function Learn Intervals and interval notation

Practice Even and odd functions: Graphs and tables Get 3 of 4 questions to level up!

And what we wanna do is figure out the domain and the range for each of these functions. So pause this video and try to figure that on your own before we do that together.

In this module, students extend their study of functions to include function notation and the concepts of domain and range. They explore many examples of functions and their graphs, …