functions

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•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a function?
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) that the function can accept.
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 can you determine if a set of points represents a function?
Back
A set of points represents a function if no two points have the same x-coordinate.
5.
FLASHCARD QUESTION
Front
What does it mean for y to be a function of x?
Back
It means that for every value of x, there is exactly one corresponding value of y.
6.
FLASHCARD QUESTION
Front
What is a 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
Given the set of points (1, 2), (2, 3), (1, 4), does this represent a function?
Back
No, because the input '1' corresponds to two different outputs (2 and 4).
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