
How to find the domain of a function (video) | Khan Academy
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.
How to find domain and range from a graph (video) | Khan Academy
Finding the domain and the range of a function that is given graphically. Created by Sal Khan.
Determining whether values are in domain of function
Sal shows how to test whether or not a value is or isn't in the domain of a function.
Examples finding the domain of functions - Khan Academy
- [Instructor] In this video, we're gonna do a few examples finding domains of functions. So let's say that we have the function f of x is equal to x plus five over x minus two.
How to find the range of a function (video) | Khan Academy
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 a more …
Domain and range of quadratic functions (video) | Khan Academy
Determine the domain and range of the function f of x is equal to 3x squared plus 6x minus 2. So, the domain of the function is: what is a set of all of the valid inputs, or all of the valid x values …
Rational functions (video) | Functions | Khan Academy
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 …
Determine the domain of functions (practice) | Khan Academy
Determine the domain of a function according to the algebraic limitations of that function.
Domain of advanced functions (video) | Khan Academy
The domain of a function, you'll often hear it combined with domain and range. But the domain of a function is just what values can I put into a function and get a valid output.
Range of quadratic functions (article) | Khan Academy
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 …