how do you know if coordinates are a function ?

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how do you know if coordinates are a function ?

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https://www.youtube.com/watch?v=TZSAcPaJgH4

https://www.youtube.com/watch?v=TZSAcPaJgH4
How to determine if a set of points is a function, onto, one to one …
0:00 / 2:44 How to determine if a set of points is a function, onto, one to one, domain, range Brian McLogan 1.42M subscribers Join Subscribe Subscribed 109K views 13 years ago What is the Domain…

https://math.libretexts.org/Courses/Kansas_State_University/Your_Guide_to_Intermediate_Algebra/02:_Introduction_to_Functions_and_Graphing/2.03:_Understanding_Graphs_of_Functions

https://math.libretexts.org/Courses/Kansas_State_University/Your_Guide_to_Intermediate_Algebra/02:_Introduction_to_Functions_and_Graphing/2.03:_Understanding_Graphs_of_Functions
2.3: Understanding Graphs of Functions – Mathematics LibreTexts
24 août 2022Use the vertical line test to determine if a graph represents a function Determine domain and range of a function using a graph Warm Up (PageIndex {1}) For the relation (R = { (-3, 2), (-1, -5), (0, 1), (3, 2), (1, 4)}), do the following: Determine its domain and range; Graph (R); Determine if (R) is also a .

https://mathinabox.com / algebra-1 / deciding-if-a-graph-is-a-function

https://mathinabox.com / algebra-1 / deciding-if-a-graph-is-a-function
Deciding if a Graph is a Function
The first number is called the x-coordinate and the second number is called the y-coordinate. That’s a little review for you, but I hate to tell there are other names! But most countries do use the (x, y). If you SEE the points (3, -2) and (3, 5) on your graph then your graph is NOT a function.

https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:functions/x2f8bb11595b61c86:recognizing-functions/v/graphical-relations-and-functions

https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:functions/x2f8bb11595b61c86:recognizing-functions/v/graphical-relations-and-functions
Recognizing functions from graph (video) | Khan Academy
A relation is a set of ordered pairs. A function is a relation where each input value (x-value) has only one output (y-value). Thus, all functions are relations. But, not all relations are functions because not all will meet the requirement that each unique input creates only one output . Hope this helps.

https://math.libretexts.org/Bookshelves/Calculus/Map:_Calculus__Early_Transcendentals_(Stewart)/01:_Functions_and_Models/1.01:_Four_Ways_to_Represent_a_Function

https://math.libretexts.org/Bookshelves/Calculus/Map:_Calculus__Early_Transcendentals_(Stewart)/01:_Functions_and_Models/1.01:_Four_Ways_to_Represent_a_Function
1.1: Four Ways to Represent a Function – Mathematics LibreTexts
Identify the input values. Identify the output values. If each input value leads to only one output value, classify the relationship as a function. If any input value leads to two or more outputs, do not classify the relationship as a function. Example 1.1.1: Determining If Menu Price Lists Are Functions.

https://courses.lumenlearning.com/waymakercollegealgebra/chapter/identify-functions-using-graphs

https://courses.lumenlearning.com/waymakercollegealgebra/chapter/identify-functions-using-graphs
Identify Functions Using Graphs | College Algebra – Lumen Learning
If the function is defined for only a few input values, then the graph of the function is only a few points, where the x -coordinate of each point is an input value and the y -coordinate of each point is the corresponding output value. For example, the black dots on the graph in the graph below tell us that f(0) = 2 and f(6) = 1.

https://www.mathsisfun.com/sets/function.html

https://www.mathsisfun.com/sets/function.html
What is a Function – Math is Fun
a function relates inputs to outputs. a function takes elements from a set (the domain) and relates them to elements in a set (the codomain ). all the outputs (the actual values related to) are together called the range. a function is a special type of relation where: every element in the domain is included, and.

https://www.khanacademy.org/math/algebra-home/alg-linear-eq-func

https://www.khanacademy.org/math/algebra-home/alg-linear-eq-func
Linear equations, functions, & graphs | Khan Academy
Algebra (all content) 20 units · 412 skills. Unit 1 Introduction to algebra. Unit 2 Solving basic equations & inequalities (one variable, linear) Unit 3 Linear equations, functions, & graphs. Unit 4 Sequences. Unit 5 System of equations. Unit 6 Two-variable inequalities. Unit 7 Functions. Unit 8 Absolute value equations, , & inequalities.

https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:linear-equations-graphs/x2f8bb11595b61c86:x-intercepts-and-y-intercepts/a/intercepts-of-lines-review-x-intercepts-and-y-intercepts

https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:linear-equations-graphs/x2f8bb11595b61c86:x-intercepts-and-y-intercepts/a/intercepts-of-lines-review-x-intercepts-and-y-intercepts
Intercepts of lines review (x-intercepts and y-intercepts) – Khan Academy
To find the y -intercept, we need to zoom in on the table to find where x = 0 . The point ( 0, − 10.5) is our y -intercept. Want to learn more about finding intercepts from tables? Check out this video. Example: Intercepts from an equation We’re asked to determine the intercepts of the graph described by the following linear equation:

https://www.ck12.org/algebra/functions-on-a-coordinate-plane/lesson/Functions-on-a-Cartesian-Plane-BSC-ALG

https://www.ck12.org/algebra/functions-on-a-coordinate-plane/lesson/Functions-on-a-Cartesian-Plane-BSC-ALG
Functions on a Coordinate Plane – CK-12 Foundation
(3, -4) (-5, -7) We show all the coordinate points on the same plot. Notice that: For a positive x value we move to the right. For a negative x value we move to the left. For a positive y value we move up. For a negative y value we move down.
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