www.khanacademy.org/math/algebra/algebra-functions/domain-and-range/v/range-of-a-function

Sal introduces the concept of "range" of a function and gives examples for functions and their ranges.

www.khanacademy.org/math/algebra-home/alg-functions/alg-determining-the-range-of-a-function/a/finding-range-of-quadratic-functions

Finding the range of a function, just by looking at its formula, is pretty difficult! Actually, it's not even that easy to tell whether a single specific value is a possible ...

www.purplemath.com/modules/fcns2.htm

Discusses the domain and range of a function, and how to find the domain and range from a list of points or from a graph.

www.varsitytutors.com/hotmath/hotmath_help/topics/domain-and-range-of-rational-functions

The domain of a function f(x) is the set of all values for which the function is ... One way of finding the range of a rational function is by finding the domain of the ...

www.wikihow.com/Find-the-Range-of-a-Function-in-Math

Finding the Range of a Function of a Relation ... at a relation and determine its domain and range.

www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U17_L2_T3_text_final.html

Functions are a correspondence between two sets, called the domain and the range. When defining a function, you usually state what kind of numbers the ...

learnzillion.com/lesson_plans/8325-find-the-domain-and-range-of-a-function

In this lesson you will learn how to determine the domain or range of a function by considering sets, graphs, equations, and mappings.

www.intmath.com/functions-and-graphs/2a-domain-and-range.php

May 8, 2017 ... When finding the domain, remember: The denominator (bottom) of a fraction cannot be zero; The number under a square root sign must be ...