Is it a function?
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
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 each input (x-value) has exactly one output (y-value).
Tags
CCSS.8.F.A.1
2.
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.
3.
FLASHCARD QUESTION
Front
What does it mean if a relation is not a function?
Back
A relation is not a function if at least one input (x-value) is associated with more than one output (y-value).
Tags
CCSS.8.F.A.1
4.
FLASHCARD QUESTION
Front
Can a function have the same y-value for different x-values?
Back
Yes, a function can have the same y-value for different x-values, as long as each x-value has only one corresponding y-value.
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
What is an example of a function?
Back
An example of a function is the equation y = 2x + 3, where each x-value has a unique y-value.
Tags
CCSS.8.F.A.1
6.
FLASHCARD QUESTION
Front
What is an example of a relation that is not a function?
Back
An example of a relation that is not a function is the set of points {(1, 2), (1, 3)}, where the x-value 1 has two different y-values.
Tags
CCSS.8.F.A.1
7.
FLASHCARD QUESTION
Front
How can you tell if a mapping is a function?
Back
You can tell if a mapping is a function by checking if each input (x-value) corresponds to exactly one output (y-value).
Tags
CCSS.8.F.A.1
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