What is a function?
Evaluating Functions and Function Notation

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation that assigns exactly one output value for each input value.
2.
FLASHCARD QUESTION
Front
What does f(x) represent in function notation?
Back
f(x) represents the output of the function f for a given input x.
3.
FLASHCARD QUESTION
Front
How do you evaluate a function at a specific point?
Back
To evaluate a function at a specific point, substitute the input value into the function's equation.
4.
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.
5.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range of a function is the set of all possible output values (f(x) values) that the function can produce.
6.
FLASHCARD QUESTION
Front
If f(2) = 4, what does this tell us?
Back
This tells us that when the input is 2, the output of the function f is 4.
7.
FLASHCARD QUESTION
Front
What is the notation for a function that takes an input x and produces an output y?
Back
The notation is y = f(x).
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