• Skip to main content
  • Skip to primary sidebar
  • Skip to secondary sidebar
  • Skip to footer
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z
MathWord

MathWord

Math Terms and Definitions from A to Z

Range of a Function

The range of a function is the set of all output values (also known as y-values) when all elements of the domain are evaluated into the function.

Example: What is the range of the function y = {x^2} + 2?

The best way to find the range of a function is to graph it on the xy-plane.

a graph of a quadratic function with a range of y≥2

By observing the graph of the function, the lowest value of y is 3 and it goes up to positive infinity. Therefore we can say that the range of the given function is greater than or equal to 2.

In set notation we have,

Range: \left\{ {y \in \Re |y \ge 2} \right\}

We can read this as “y is an element of the Real Numbers such that y is greater than or equal to 2“.

Primary Sidebar

Recent Post

Perfect Numbers

Secondary Sidebar

MENU

  • “A” Math Words
  • “B” Math Words
  • “C” Math Words
  • “D” Math Words
  • “E” Math Words
  • “F” Math Words
  • “G” Math Words
  • “H” Math Words
  • “I” Math Words
  • “J” Math Words
  • “K” Math Words
  • “L” Math Words
  • “M” Math Words
  • “N” Math Words
  • “O” Math Words
  • “P” Math Words
  • “Q” Math Words
  • “R” Math Words
  • “S” Math Words
  • “T” Math Words
  • “U” Math Words
  • “V” Math Words
  • “W” Math Words
  • “X” Math Words
  • “Y” Math Words
  • “Z” Math Words

Footer

Contact

Sitemap

Privacy Policy

Cookie Policy

© Copyright 2018-2020 MathWord.co
Terms and Conditions

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.OkCookie Policy