Functions vs. Non-Functions
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
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16 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 a non-function?
Back
A non-function is a relation where at least one input (x-value) has more than one output (y-value).
Tags
CCSS.8.F.A.1
3.
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 intersects the graph at more than one point, it is not a function.
4.
FLASHCARD QUESTION
Front
Give an example of a function using ordered pairs.
Back
{(1, 2), (2, 3), (3, 4)} - Each x-value has one unique y-value.
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
Give an example of a non-function using ordered pairs.
Back
{(1, 2), (1, 3), (2, 4)} - The x-value 1 has two different y-values.
Tags
CCSS.8.F.A.1
6.
FLASHCARD QUESTION
Front
What does it mean for a mapping to represent a function?
Back
A mapping represents a function if every input has exactly one output.
Tags
CCSS.8.F.A.1
7.
FLASHCARD QUESTION
Front
Can a function have repeating x-values?
Back
Yes, but each repeating x-value must have the same corresponding y-value.
Tags
CCSS.8.F.A.1
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