Introduction to Functions


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question 1 of 3

Here is a function, written in function notation:

F(x) = x - 4

What is the INPUT in this function?

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1. For any given function, for every input…

2. Here is a diagram of a function. Which of the following represents the function in function notation?

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About This Quiz & Worksheet

This quiz and worksheet will help you see what you do and don't know when it comes to topics like function notation, inputs, and the possible numbers you can plug into a given function.

Quiz & Worksheet Goals

Particularly, you'll be questioned on:

  • The identification of inputs in functions
  • Qualities of inputs
  • What function notation looks like
  • A word referring to all possible numbers one could plug into a function
  • The possible numbers you could get out of a function

Skills Practiced

  • Information recall - access the knowledge you've gained regarding function notation
  • Interpreting information - verify that you can read information regarding numbers you put into and get out of functions
  • Knowledge application - use your knowledge to answer questions about inputs in functions

Additional Learning

Learn what else is to be known in regard to functions by watching our video lesson titled Introduction to Functions. This lesson's goal is to help you with concepts such as:

  • Rules for functions
  • Function notation form
  • What functions are and do