Function or not
Flashcard
•
Mathematics
•
9th 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 between a set of inputs and a set of possible outputs where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
What is the definition of a set of ordered pairs?
Back
A set of ordered pairs is a collection of pairs of elements, typically written as (x, y), where 'x' is the input and 'y' is the output.
3.
FLASHCARD QUESTION
Front
How can you determine if a set of ordered pairs is a function?
Back
A set of ordered pairs is a function if no two different pairs have the same first element (input).
4.
FLASHCARD QUESTION
Front
What does it mean if a set of ordered pairs is 'not a function'?
Back
It means that at least one input is associated with more than one output.
5.
FLASHCARD QUESTION
Front
Example of a function: {(1, 2), (2, 3), (3, 4)}. Is this a function?
Back
Yes, this is a function because each input has a unique output.
6.
FLASHCARD QUESTION
Front
Example of not a function: {(1, 2), (1, 3), (2, 4)}. Is this a function?
Back
No, this is not a function because the input '1' is associated with two different outputs (2 and 3).
7.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
The vertical line test is a method to determine if a curve is a function. If a vertical line intersects the curve at more than one point, it is not a function.
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