Function Notation Practice

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•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is function notation?
Back
Function notation is a way to represent a function using symbols, typically written as f(x), where f is the name of the function and x is the input variable.
2.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation that assigns exactly one output for each input. In other words, for every x-value, there is one and only one corresponding y-value.
3.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
The vertical line test is a method used to determine if a relation is a function. If a vertical line intersects the graph of the relation at more than one point, it is not a function.
4.
FLASHCARD QUESTION
Front
Is the set {(1, 2), (2, 3), (3, 4)} a function?
Back
Yes, this set is a function because each input (x-value) has a unique output (y-value).
5.
FLASHCARD QUESTION
Front
Is the set {(1, 2), (1, 3), (2, 4)} a function?
Back
No, this set is not a function because the input 1 corresponds to two different outputs (2 and 3).
6.
FLASHCARD QUESTION
Front
If f(x) = 2x + 3, what is f(0)?
Back
f(0) = 2(0) + 3 = 3.
7.
FLASHCARD QUESTION
Front
If f(x) = x^2, what is f(3)?
Back
f(3) = 3^2 = 9.
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