Identifying Functions

Flashcard
•
Mathematics
•
8th Grade
•
Easy
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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
How can you determine if a relation is a function using ordered pairs?
Back
A relation is a function if no x-value is repeated with different y-values.
3.
FLASHCARD QUESTION
Front
What does it mean if an x-value is paired with two different y-values?
Back
It means the relation is not a function.
4.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
If a vertical line intersects a graph at more than one point, the relation is not a function.
5.
FLASHCARD QUESTION
Front
Is the relation {(1,2), (2,3), (3,4)} a function?
Back
Yes, because each x-value is paired with only one y-value.
6.
FLASHCARD QUESTION
Front
Is the relation {(1,2), (1,3), (2,4)} a function?
Back
No, because the x-value 1 is paired with two different y-values (2 and 3).
7.
FLASHCARD QUESTION
Front
What is a mapping diagram?
Back
A mapping diagram visually represents the relationship between inputs and outputs, showing how each x-value connects to a y-value.
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