Domain And Range Of A Function Khan Academy

F x does not equal zero so the domain is all real numbers except for zero the range is all real numbers except for zero.

Domain and range of a function khan academy. Domain and range from graph our mission is to provide a free world class education to anyone anywhere. The set of all possible outputs of your function. The domain of a function is the set of all possible inputs for the function.

A function is a relation where every domain x value maps to only one range y value. The domain of a function you ll often hear it combined with domain and range. Domain and range of a function given a formula domain of a radical function this original khan academy video was translated into isizulu by ziyanda sithole.

But the domain of a function is just what values can i put into a function and get a valid output. So let s start with something examples. The domain is the set of all valid inputs into your function.

Welcome to my presentation on domain of a function. The translation project was made possible by clickmaths. Khan academy is a 501 c 3 nonprofit organization.

So what s is the domain. For example the domain of f x x is all real numbers and the domain of g x 1 x is all real numbers except for x 0. We can also define special functions whose domains are more limited.

If you have the points 2 3 4 6 1 8 and 3 7 that relation would be a function because there is only one y value for each x.