Is it a function?
Flashcard
•
Mathematics
•
9th Grade
•
Hard
Wayground Content
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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
How can you determine if a set of values is a function?
Back
A set of values is a function if no two different inputs (x-values) map to the same output (y-value).
3.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
The vertical line test is a method to determine if a graph represents a function. If a vertical line intersects the graph at more than one point, it is not a function.
4.
FLASHCARD QUESTION
Front
What does it mean for a relation to be not a function?
Back
A relation is not a function if at least one input is associated with more than one output.
5.
FLASHCARD QUESTION
Front
Give an example of a function using ordered pairs.
Back
(1, 2), (2, 3), (3, 4) is a function because each x-value is unique.
6.
FLASHCARD QUESTION
Front
Give an example of a relation that is not a function using ordered pairs.
Back
(1, 2), (1, 3), (2, 4) is not a function because the input 1 is associated with two different outputs.
7.
FLASHCARD QUESTION
Front
What is a mapping diagram?
Back
A mapping diagram visually represents a function by showing how each input is paired with an output.
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