Function or Not a Function

Flashcard
•
Mathematics
•
8th - 9th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a function in mathematics?
Back
A function is a relation that assigns exactly one output (y-value) for each input (x-value).
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
How can you determine if a graph represents a function?
Back
A graph represents a function if any vertical line drawn through the graph intersects it at most once (Vertical Line Test).
3.
FLASHCARD QUESTION
Front
What is the Vertical Line Test?
Back
The Vertical Line Test is a method to determine if a graph is a function by checking if any vertical line crosses the graph more than once.
4.
FLASHCARD QUESTION
Front
What does it mean for a relation to not be a function?
Back
A relation is not a function if at least one input (x-value) is associated with more than one output (y-value).
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
Given the set of ordered pairs {(1,5),(1,7),(3,9),(4,11)}, is this a function?
Back
No, it is not a function because the input '1' is associated with two different outputs (5 and 7).
Tags
CCSS.8.F.A.1
6.
FLASHCARD QUESTION
Front
What is an example of a function?
Back
An example of a function is the relation {(2,3), (3,4), (4,5)}, where each input has a unique output.
Tags
CCSS.8.F.A.1
7.
FLASHCARD QUESTION
Front
What is an example of a relation that is not a function?
Back
An example of a relation that is not a function is {(1,2), (1,3)}, where the input '1' has two different outputs.
Tags
CCSS.8.F.A.1
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