Functions

Popular Tutorials in Functions

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  How Do You Find f(x) If You Have a Value For x?

  To solve a function for a given value, plug that value into the function and simplify. See this first-hand by watching this tutorial!

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  What is Domain?

  Did you know that a relation has a domain? The domain of a relation is the set of the first coordinates from the ordered pairs. This tutorial defines the domain of a relation!

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  What is the Range of a Relation?

  Did you know that a relation has a range? The range of a relation is the set of the second coordinates from the ordered pairs. This tutorial defines the range of a relation!

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  What's a Function?

  You can't go through algebra without learning about functions. This tutorial shows you a great approach to thinking about functions! Learn the definition of a function and see the different ways functions can be represented. Take a look!

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  What is Function Notation?

  Every see 'f(x)' in your math? That's function notation! It's a way to indicate that an equation is a function. Learn about function notation by watching this tutorial.

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  How Do You Find f(x) When the Value for x Contains Other Variables?

  When you're evaluating a function, you're usually given a number to plug in for the variable, but what if the expression you're plugging in contains other variables? See how to plug an expression with variables into a function! This tutorial will show you!

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  How Do You Find the Sum of Two Functions?

  Adding functions is easier than you might think! Follow along with this tutorial to learn how to add two functions together.