What is the definition of a function?
FLASHCARD 3.1a-c Domain, Range, Functions

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Mathematics
•
8th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation that assigns exactly one output for each input.
2.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain is the set of all possible input values (x-values) for the function.
3.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range is the set of all possible output values (y-values) that the function can produce.
4.
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).
5.
FLASHCARD QUESTION
Front
What does it mean if a relation is not a function?
Back
It means that at least one input is associated with multiple outputs.
6.
FLASHCARD QUESTION
Front
What is the notation used to represent the domain of a function?
Back
The domain is often represented using interval notation, set notation, or inequalities.
7.
FLASHCARD QUESTION
Front
What is the range of the function f(x) = x^2?
Back
The range is [0, ∞) since the output values are all non-negative.
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