Function or Not a Function (No Graphs)

Flashcard
•
Mathematics
•
8th - 9th Grade
•
Hard
Standards-aligned
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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 each input (x-value) has exactly one output (y-value).
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
What is the definition of 'not a function'?
Back
A relation is not a function if at least one input (x-value) has more than one output (y-value).
Tags
CCSS.8.F.A.1
3.
FLASHCARD QUESTION
Front
Example of a function: (1, 2), (2, 3), (3, 4) - Is this a function?
Back
Yes, this is a function because each input has one output.
Tags
CCSS.8.F.A.1
4.
FLASHCARD QUESTION
Front
Example of not a function: (1, 2), (1, 3), (2, 4) - Is this a function?
Back
No, this is not a function because the input '1' has two outputs (2 and 3).
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
What is an ordered pair?
Back
An ordered pair is a pair of numbers (x, y) that represent a point in a coordinate system.
Tags
CCSS.5.G.A.1
6.
FLASHCARD QUESTION
Front
Can a function have the same output for different inputs?
Back
Yes, a function can have the same output for different inputs, as long as each input has only one output.
Tags
CCSS.8.F.A.1
7.
FLASHCARD QUESTION
Front
What is the vertical line test?
Back
The vertical line test is a method to determine if a graph represents a function. If a vertical line crosses the graph at more than one point, it is not a function.
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