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

The range of a function is the set of all possible outputs the function can produce. Some functions (like linear functions) can have a range of all real numbers, but lots of functions have …

Learn how you can find the range of any quadratic function from its vertex form. In this article, we will learn how to find the range of quadratic functions. In other words, we will learn how to …

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.

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.

Inputs and outputs of a function Learn Worked example: matching an input to a function's output (equation)

How do you find the domain and range of a piece-wise function using interval notation?

Find the range of f (x) = | x 1 | . Note: R denotes the set of all real numbers.

Here, Sal says, "Function takes you from the domain to the range, the inverse will take you from that point back to the original value, if it exists." So, do some functions not have inverses?

Sal introduces arctangent, which is the inverse function of tangent, and discusses its principal range.