Is it a Function?
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation where each input (x-value) has exactly one output (y-value).
2.
FLASHCARD QUESTION
Front
What is the definition of 'Not 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).
3.
FLASHCARD QUESTION
Front
Is the mapping {(1, 2), (1, 3), (2, 4)} a function?
Back
Not a Function, because the input 1 has two outputs (2 and 3).
4.
FLASHCARD QUESTION
Front
Is the mapping {(1, 2), (2, 3), (3, 4)} a function?
Back
Function, because each input has only one output.
5.
FLASHCARD QUESTION
Front
What does it mean if a table represents a function?
Back
It means that for every x-value in the table, there is only one corresponding y-value.
6.
FLASHCARD QUESTION
Front
Is the relation {(2, 3), (2, 5), (3, 6)} a function?
Back
Not a Function, because the input 2 has two outputs (3 and 5).
7.
FLASHCARD QUESTION
Front
What is an example of a function?
Back
The relation {(1, 2), (2, 3), (3, 4)} is a function.
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