Relations & Functions Test

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the slope of the equation y = 8x + 5?
Back
The slope is 8, which can be expressed as 8/1.
2.
FLASHCARD QUESTION
Front
What are all of the x values or inputs in a relation called?
Back
Domain.
3.
FLASHCARD QUESTION
Front
Given the relation {(1, 7), (3, 8), (3, 6), (6, 5), (2, 11), (1, 4)}, is it a function?
Back
No, it is not a function because the x-value 3 is paired with two different y-values (8 and 6).
4.
FLASHCARD QUESTION
Front
Does the table represent a linear function if the slope is 4?
Back
Yes, it represents a linear function because it has a constant slope of 4.
5.
FLASHCARD QUESTION
Front
Is the mapping {(1, 7), (3, 8), (3, 6), (6, 5), (2, 11), (1, 4)} a function?
Back
No, it is not a function because the x-value 3 has two arrows meaning it is paired with two y-values.
6.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation where each input (x-value) is paired with exactly one output (y-value).
7.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range is the set of all possible output values (y-values) of a function.
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