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.

Now the domain is the set of all x values that if we input it into this function, we're going to get a legitimate output. We're going to get a legitimate f of x.

What is a function? CCSS.Math: 8.F.A.1, HSF.IF.A.1, HSF.IF.A.2 Google Classroom Microsoft Teams About Transcript

The domain of a function is the set of values that we are allowed to plug into our function. So if you are going to check for the domain, usually find for the following 3 points:

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 …

Video transcript - [Instructor] We're asked to determine for each x-value whether it is in the domain of f or not. And they have our definition of f of x up here. So pause this video and see if …

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.

The domain is the possible numbers n can be that would accurately describe the sequence. For example, the difference between whether n>=1 or n>=0 depends on whether the range …

The domain needs to be restricted to avoid any input (X-value) that would cause the denominator to be = 0. We do this by looking at each factor in the denominator and finding the value that …