Identify Functions (Vertical Line Test)
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the Vertical Line Test?
Back
A method to determine if a graph represents a function. If any vertical line intersects the graph at more than one point, it is not a function.
2.
FLASHCARD QUESTION
Front
What defines a function in mathematics?
Back
A relation where each input (x-value) has exactly one output (y-value).
3.
FLASHCARD QUESTION
Front
Is the set of points (1,5), (1,6), (1,7), (1,8), (1,9) a function?
Back
No, because the x-value 1 is associated with multiple y-values.
4.
FLASHCARD QUESTION
Front
What does it mean if a graph is not a function?
Back
It means that there exists at least one x-value that corresponds to more than one y-value.
5.
FLASHCARD QUESTION
Front
Can a vertical line intersect a function more than once?
Back
No, if it does, the relation is not a function.
6.
FLASHCARD QUESTION
Front
What is an example of a function?
Back
The relation (2,3), (3,4), (4,5) is a function because each x-value is unique.
7.
FLASHCARD QUESTION
Front
What is an example of a non-function?
Back
The relation (1,2), (1,3), (2,4) is not a function because the x-value 1 has two different y-values.
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