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![1️⃣](https://static.cafenono.com/emoji/14/img-apple-160/0031-fe0f-20e3.png)
Lesson 1
![⛓️](https://static.cafenono.com/emoji/14/img-apple-64/26d3-fe0f.png)
Relation - any pairing of a set of inputs with a set of outputs
![🌐](https://static.cafenono.com/emoji/14/img-apple-64/1f310.png)
Domain - set of inputs
![📏](https://static.cafenono.com/emoji/14/img-apple-64/1f4cf.png)
Range - set of outputs
Ordered Pairs
Table
Graph
Mapping
Equation
(1, 2)
(-2, 4)
(0, -3)
x | y |
1 | 2 |
-2 | 4 |
0 | -3 |
mapping shows how each item in the domain is paired with an element in the range.
x=2y
![🧍](https://static.cafenono.com/emoji/14/img-apple-64/1f9cd.png)
Independent Variable - Domain/Input
![👶](https://static.cafenono.com/emoji/14/img-apple-64/1f476.png)
Dependent Variable - Range/output
same thing
![😃](https://static.cafenono.com/emoji/14/img-apple-64/1f603.png)
Discrete Function - Specific values in D&R
![🙁](https://static.cafenono.com/emoji/14/img-apple-64/1f641.png)
Continuous Function - Every value between