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

Actually, on a Cartesian plane, we only use the domain and range of real numbers (not rational numbers), so we do not include imaginary numbers. These are not on our normal Cartesian (x …

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.

Determine the domain of a function according to the algebraic limitations of that function.

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.

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The domain is the possible numbers that the function will work for. Sometimes it is limited. For the function f (x) = 1/x, you cannot divide by zero, so the range would be all real numbers except …

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

- [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.

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