What is a function?
Function/Non Function

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•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation where each input (x-value) has exactly one output (y-value).
2.
FLASHCARD QUESTION
Front
What is a non-function?
Back
A non-function is a relation where at least one input (x-value) has more than one output (y-value).
3.
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).
4.
FLASHCARD QUESTION
Front
What is an ordered pair?
Back
An ordered pair is a pair of numbers (x, y) that represent a point on a graph.
5.
FLASHCARD QUESTION
Front
What does it mean for a table to represent a function?
Back
A table represents a function if each x-value corresponds to only one y-value.
6.
FLASHCARD QUESTION
Front
Give an example of a function using ordered pairs.
Back
Example: {(1, 2), (2, 3), (3, 4)} - Each x-value is unique.
7.
FLASHCARD QUESTION
Front
Give an example of a non-function using ordered pairs.
Back
Example: {(1, 2), (1, 3), (2, 4)} - The x-value '1' has two different y-values.
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