A1 Check for Understanding 5.1 - Function Definition
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 relation where each input has only one output.
Tags
CCSS.8.F.A.1
2.
FLASHCARD QUESTION
Front
Which ordered pair would prevent a table from being a function?
Back
(-2, 0) because it has the same x-value as another ordered pair.
Tags
CCSS.8.F.A.1
3.
FLASHCARD QUESTION
Front
How can you tell if a graph represents a function?
Back
Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.
4.
FLASHCARD QUESTION
Front
Is the set of ordered pairs {(1, 2), (2, 3), (1, 4)} a function?
Back
No, because the x-value 1 is associated with two different y-values (2 and 4).
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
What does it mean for a relation to be a function?
Back
Each input (x-value) must correspond to exactly one output (y-value).
Tags
CCSS.8.F.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
A method to determine if a graph is a function by checking if a vertical line crosses the graph more than once.
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