Is it a function?

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•
Mathematics
•
8th - 9th 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 where every input has only ONE output.
2.
FLASHCARD QUESTION
Front
Which set of values is a function? (9,5) (10,5) (9,-5) (10,-5), (3,4) (4,-3) (7,4) (3, 8), (6,-5) (7, -3) (8, -1) (9, 1), (2, -2) (5, 9) (5, -7) (1, 4)
Back
(6,-5) (7, -3) (8, -1) (9, 1) is a function.
3.
FLASHCARD QUESTION
Front
What does the vertical line test determine?
Back
The vertical line test determines if a graph represents a function. If a vertical line crosses the graph more than once, it is not a function.
4.
FLASHCARD QUESTION
Front
Which graph does NOT pass the vertical line test?
Back
Graph 1 does NOT pass the vertical line test.
5.
FLASHCARD QUESTION
Front
What is an example of a non-function?
Back
Example 2 is not a function because an input maps to multiple outputs.
6.
FLASHCARD QUESTION
Front
Does this mapping diagram represent a function? (Yes/No)
Back
Yes, because each input goes to one and only one output.
7.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain is the set of all possible input values (x-values) for the function.
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