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Discover Functions & Learn to Use them

A function is an important part of an equation in algebra. It is one of the primary algebra topics that will help you get your basics strong.

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Check out the definition of functions and the various aspects of functions below:
 

  • What is a Function?
  • Representing a function
  • Examples
  • Functions & Equations
  • Functions & Graphs
  • Inverse Functions
  • Polynomial function
  • Linear Function
  • Identical Function
  • Quadratic Function
  • Rational Function
  • Algebraic Functions
  • Cubic Function
  • Modulus Function
  • Signum Function
  • Greatest Integer Function
  • Fractional Part Function
  • Even and Odd Function
  • Periodic Function
  • Composite Function
  • Constant Function
  • Identity Function

 

Functions frequently Asked Questions:

Question 1: What is function and example?
A function refers to some set of rules that provide a set of output values for each and every input value from its domain. It relates each element of its domain (input) to some element of its range (output).

 

Question 2: What are the 4 types of functions?
A function could be broadly classified as one-to-one, many-to-one, onto function, or one-to-one and onto function.

 

Question 3: Where is the function defined?
A function is defined over its domain. Domain means the set of all input values for which the function is defined and has real values.

 

Question 4: What is a function and not a function?
If a curve intersects a vertical line at only one point, then it is called a function. And, if the curve passes through a vertical line at more than one point, then this curve does not represent a function.

 

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