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![Page 1: A relation is a set of ordered pairs. Think of all the students in our class and think of their heights… Pairing their name and their height is a relation.](https://reader030.fdocuments.in/reader030/viewer/2022032804/56649e455503460f94b39452/html5/thumbnails/1.jpg)
A relation is a set of ordered pairs.
Think of all the students in our class and think of their heights…
Pairing their name and their height is a relation.
2.1 Relations & Functions
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The set of all the starting points is called the domain, and
The set of all the ending points is called the range.
The domain is what you start with; the range is what you end up with.
Domain vs. Range
All the ’s
All the ’s
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Domain & Range
State the domain and range of each.1. {(1, 3), (3, -2), (6, 0), (2, 4)}
2.
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Domain & Range
State the domain and range of each.3. 4.
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A relation is any set of ordered pairs.
Functions vs. RelationsA function is a relations where each has at most 1 .
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Foldable!Each student will receive a foldable.
Use your scissors to cut along the dotted lines.
You are ENCOURAGED to use highlighters, markers, and colored pencils in this foldable!!!
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State the domain and range of each relation. Then determine whether each relation is a function.
Practice
1. 2.
![Page 8: A relation is a set of ordered pairs. Think of all the students in our class and think of their heights… Pairing their name and their height is a relation.](https://reader030.fdocuments.in/reader030/viewer/2022032804/56649e455503460f94b39452/html5/thumbnails/8.jpg)
State the domain and range of each relation. Then determine whether each relation is a function.
Practice
3. 4.
![Page 9: A relation is a set of ordered pairs. Think of all the students in our class and think of their heights… Pairing their name and their height is a relation.](https://reader030.fdocuments.in/reader030/viewer/2022032804/56649e455503460f94b39452/html5/thumbnails/9.jpg)
State the domain and range of each relation. Then determine whether each relation is a function.
Practice
5. 6.
![Page 10: A relation is a set of ordered pairs. Think of all the students in our class and think of their heights… Pairing their name and their height is a relation.](https://reader030.fdocuments.in/reader030/viewer/2022032804/56649e455503460f94b39452/html5/thumbnails/10.jpg)
State the domain and range of each relation. Then determine whether each relation is a function.
Practice
7.
8.
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Function Notationis read “.”
The is the name of the function.
is not a variable that is multiplied by .
is read “.”
The is the name of the function.
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Function Notation
The symbol replaces the in problems like…
𝒇 (𝒙 )=𝟑 𝒙−𝟓𝒚=𝟑 𝒙−𝟓 Normal Notation
Function Notation
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Function Notation
For the function below find .
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Function NotationFind each value for the function .
1.
2.
3.
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You TryFind each value for the function .
1.
2.
3.
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Function NotationFind each value if and .
1.
2.
3.
4.
5.
6.
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HomeworkLesson 2.1 2.1 Worksheet