

Determining Whether a Relation Is a Function
Presentation
•
Mathematics
•
10th Grade
•
Hard
Tetiana Truett
Used 1+ times
FREE Resource
8 Slides • 0 Questions
1
Determining Whether a Relation Is a Function

2
Review
A relation is an equation in which one variable depends on the value of another variable. The variables are x (domain) and y (range).
3
Function
is a special kind of relation in which every element in the domain is paired with exactly one element in the range.
4
Important!
the difference between a relation and a function is that in a relation a domain (x) can be related to more than one value of range (y). In the function a domain (x) can be related only to one value.
5
This is a relation
but not a function! We can see that range (y) can be paired with more than one domain (x).
6
This is both a relation and a function!
We can see that each domain (x) can be paired with only one range (y).
7
Let's practice
This is not a function because both domains 3 and 4 are paired with range 5.
8
This is a function
because each domain (x) is paired with only one range (y).
Determining Whether a Relation Is a Function

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