What is a function?
Determining Functions

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•
Mathematics
•
8th - 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 vertical line test?
Back
The vertical line test is a method used to determine if a curve is a graph of a function. If a vertical line intersects the graph at more than one point, then it is not a function.
3.
FLASHCARD QUESTION
Front
What does it mean for a relation to be a function?
Back
A relation is a function if every input (x-value) has exactly one output (y-value).
4.
FLASHCARD QUESTION
Front
Can a function have the same output for different inputs?
Back
Yes, a function can have the same output for different inputs, but each input must have only one output.
5.
FLASHCARD QUESTION
Front
What is a domain in a function?
Back
The domain of a function is the set of all possible input values (x-values) that the function can accept.
6.
FLASHCARD QUESTION
Front
What is a range in a function?
Back
The range of a function is the set of all possible output values (y-values) that the function can produce.
7.
FLASHCARD QUESTION
Front
What is an example of a function?
Back
An example of a function is f(x) = 2x + 3, where for each x-value, there is a unique y-value.
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