Functions vs. Non-Functions

Flashcard
•
Mathematics
•
8th Grade
•
Hard
+1
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 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)} is a function because 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)} is a non-function because 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 relation to be one-to-one?
Back
A one-to-one relation is a function where each x-value maps to a unique y-value and each y-value is paired with only one x-value.
7.
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.
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