What is a function?
Function or Not?

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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 definition of a domain in a function?
Back
The domain of a function is the complete set of possible values of the independent variable (input) 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 (dependent variable) that result from using the function.
4.
FLASHCARD QUESTION
Front
How can you determine if a relation is a function?
Back
A relation is a function if every input has exactly one output. This can be checked using the vertical line test on a graph.
5.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
The vertical line test is a method to determine if a curve is a graph of a function. If a vertical line intersects the graph at more than one point, it is not a function.
6.
FLASHCARD QUESTION
Front
What is an independent variable?
Back
An independent variable is a variable that represents the input or cause in a function, which can be changed or controlled.
7.
FLASHCARD QUESTION
Front
What is a dependent variable?
Back
A dependent variable is a variable that represents the output or effect in a function, which depends on the independent variable.
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