Identifying Functions with graphs

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•
Mathematics
•
8th - 12th Grade
•
Hard
+2
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.
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
Which of the following is a function? {(1,2), (2,3), (3,4), (1,5)}
Back
Not a function, because the input '1' is related to two different outputs (2 and 5).
Tags
CCSS.8.F.A.1
4.
FLASHCARD QUESTION
Front
Which of the following is a function? {(2,3), (3,4), (4,5), (5,6)}
Back
This is a function, as each input is related to exactly one output.
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
What does it mean for a relation to be not a function?
Back
A relation is not a function if at least one input is related to more than one output.
Tags
CCSS.8.F.A.1
6.
FLASHCARD QUESTION
Front
If a graph has a curve that loops back on itself, is it a function?
Back
No, it is not a function, as it fails the vertical line test.
7.
FLASHCARD QUESTION
Front
What is an ordered pair?
Back
An ordered pair is a pair of numbers used to represent a point in a coordinate system, typically written as (x, y).
Tags
CCSS.5.G.A.1
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