What is a function?
Functions and Domain and Range

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Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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 domain of a function?
Back
The domain of a function is the set of all possible input values (x-values) for which the function is defined.
3.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range of a function is the set of all possible output values (y-values) that the function can produce.
4.
FLASHCARD QUESTION
Front
How do you determine the domain from a graph?
Back
To determine the domain from a graph, identify the x-values that the graph covers.
5.
FLASHCARD QUESTION
Front
How do you determine the range from a graph?
Back
To determine the range from a graph, identify the y-values that the graph covers.
6.
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.
7.
FLASHCARD QUESTION
Front
What is an ordered pair?
Back
An ordered pair is a pair of numbers used to represent a point in a coordinate system, typically written as (x, y).
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