Domain is what goes in, range is what comes out. Domain is x, range is y. Domain is left to right, range is bottom to top! Have an example of where you're confused? Answer from matt7259 on reddit.com
IntMath
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Domain and Range of a Function
Simple explanation for domain and range. We learn the domain of a function is the set of possible x-values and the range is the resulting set of y-values.
Finding the Domain and Range of a Multivariable Function
\sqrt(something) implies (something)>0 trust yourselves and do it. You'd probably get an equation of a circle, after you complete the square wrt x. less than or greater than will tell you the domain of values acceptable on the x-y plane. and then you can work the range. Reply with what you get please unless there are more doubts. More on reddit.com
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February 22, 2021Domain and Range for a function f(x)
Change f(x) to y and it should work More on reddit.com
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September 17, 2021Domain and Range Restrictions as Variables : desmos
[Domain and Range Restrictions as Variables](https://www.desmos.com/calculator/v6y8rp4hfp) Such a variable would be useful when it is desired to... More on old.reddit.com
How to write the domain and range of a function? : mathematics
I've watched several videos, but they seemed to be doing different ways to write it. For example some domain would be; D [ 0, ∞] and some will... More on old.reddit.com
Videos
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Understand Domain and Range - YouTube
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Finding the Domain and Range From a Graph (Interval Notation) - ...
Functions | Domain and Range | Infinity Learn | (GMAT/GRE ...
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The best explanation of domain and range with multiple examples ...
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Domain and Range – Get Ready to Understand! - YouTube
Reddit
reddit.com › r/learnmath › can someone please explain domain and range?
r/learnmath on Reddit: Can someone please explain Domain and Range?
February 12, 2022 -
I'm a bit confused about it, Funtions and Linear Relationships is just a bit hard for me to understand.
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Domain is what goes in, range is what comes out. Domain is x, range is y. Domain is left to right, range is bottom to top! Have an example of where you're confused?
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Oh. This is a fun one. I'm going to be difficult and rename some things to have them make more sense. Your input variable is now your control variable. Your output variable is now your response variable. In an f(x) = y scenario, x is control and y is response. I call it the control variable because it's the only part of the function that you can actually control. You choose what to input. This also works well for describing domain and range, because a king's domain is the part of the world that he controls. So going back to f(x) = y: x is our control, so our x values are our domain. Similarly, our response variables are our range of possible outputs. In our f(x) example: y is our response variable, so the values of y make up our range. There will be the odd instance like f(z) = k, but this shouldn't bother us because our control variable is z and our response variable is k. Wash, rinse, and repeat for our definitions and our simile to remember what's going on.
Purplemath
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The Domain and Range of Functions
A function's domain is where the function lives, where it starts from; its range is where it travels, where it goes to. Just like the old cowboy song!
Mathematics LibreTexts
math.libretexts.org › bookshelves › applied mathematics › calculus for business and social sciences corequisite workbook (dominguez, martinez, and saykali) › 4: functions
4.7: Domain and Range of a Function - Mathematics LibreTexts
July 18, 2022 - The domain of a function is all possible values of x that can be used as input to the function, which will result in a real number as the output. The range of a function is the set of all possible …
Math is Fun
mathsisfun.com › sets › domain-range-codomain.html
Domain, Range and Codomain
In its simplest form the domain is all the values that go into a function, and the range is all the values that come out.
Cuemath
cuemath.com › calculus › domain-and-range-of-a-function
Domain and Range - From Graph | How to Find Domain and Range of a Function?
The domain and range of a function are the components of a function. The domain is the set of all the input values of a function and the range is the possible output given by the function. Domain→ Function →Range.
Centennial College
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Domain and Range of Functions - Math help from the Learning Centre - Library Guides at Centennial College
November 13, 2025 - The domain is the set of all input values. The range is the set of all output values. When we draw graphs, we usually have the x-coordinates as the horizontal values, and the y-coordinates as the vertical values.
Mathway
mathway.com › Calculator › domain-range-calculator
Domain and Range Calculator | Mathway
The Domain and Range Calculator finds all possible x and y values for a given function.
Khan Academy
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Domain and range from graph (practice)
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Varsity Tutors
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Domain and Range
The domain of a function is the set of all values for which the function is defined, and the range is the set of all values that the function takes.
YouTube
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Domain and Range of a Function From a Graph - YouTube
This precalculus video tutorial explains how to find the domain and range of a function given its graph in interval notation. The domain represents all of th...
Published February 9, 2018 Views 290K
Study.com
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Domain & Range of a Function | Definition, Equation & Examples - Lesson | Study.com
January 11, 2013 - The range of a function is the set of all output values in which the function is defined. Or, in another way, it is the set of all values that the function takes. ... The input values appear in the x column while the output values appear in ...
Mathematics LibreTexts
math.libretexts.org › bookshelves › algebra › college algebra 1e (openstax) › 3: functions
3.3: Domain and Range - Mathematics LibreTexts
October 6, 2021 - We can visualize the domain as a “holding area” that contains “raw materials” for a “function machine” and the range as another “holding area” for the machine’s products (Figure \(\PageIndex{2}\)).
Mathway
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Examples | Functions | Finding the Domain and Range
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. ... The range is the set of all valid values.
BYJUS
byjus.com › maths › domain-codomain-range-functions
Domain Range and Codomain Of A Function
August 17, 2022 - ... The set of all the outputs of a function is known as the range of the function or after substituting the domain, the entire set of all values possible as outcomes of the dependent variable.
Lumen Learning
courses.lumenlearning.com › waymakercollegealgebra › chapter › find-domain-and-range-from-a-graph
Determine Domain and Range from a Graph | College Algebra
Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the [latex]x[/latex]-axis. The range is the set of possible output values, which are shown ...
Wikipedia
en.wikipedia.org › wiki › Domain_of_a_function
Domain of a function - Wikipedia
2 days ago - ... {\displaystyle f\colon X\to Y} , the set Y is called the codomain: the set to which all outputs must belong. The set of specific outputs the function assigns to elements of X is called its range ...
USU Mechanical and Aerospace Engineering
engineering.usu.edu › students › engineering-math-resource-center › topics › pre-calculus › algebra › domain-and-range
Domain and Range | Engineering Math Resource Center | College of Engineering | USU
By writing Ohm's law this way, we have defined its domain D to be every real value of V and every non-negative value of R. The range is the set of values that a function can output and was defined in our definition of a function to be the set Y. By ...
GeeksforGeeks
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Domain and Range | How to Find Domain and Range of a Function - GeeksforGeeks
... A quadratic function is a polynomial function with degree 2 i.e. f(x): ax2 + bx = c = 0 is a Quadratic Function. Example: For g(x) = x2 − 4, the domain is all real numbers, but the range is restricted.
Published October 11, 2022