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

What are rational functions? How do we plot them? What is their domain and range? Let's find out. We break down the definition of the function given in set-builder form and plot the graph by connecting …

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-y) …

Functions assign a single output for each of their inputs. In this video, we see examples of various kinds of functions.

Let's take a look at an example where plotting a graph can help us figure out the domain and range of a function. Even if that function is not a polynomial. We break down the definition of the function given …

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.

Learn how to determine the domain and range of a function from its graph with this concise tutorial on Khan Academy.

Given an exponential function of the form f (x) = a*b^x in algebraic or graphed form, determine its domain and range.

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