4th Period Linear Functions Flashcard

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
+6
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a direct variation?
Back
A direct variation is a relationship between two variables where one variable is a constant multiple of the other. It can be expressed in the form y = kx, where k is a non-zero constant.
2.
FLASHCARD QUESTION
Front
What is an inverse variation?
Back
An inverse variation is a relationship between two variables where the product of the two variables is a constant. It can be expressed in the form y = k/x, where k is a non-zero constant.
3.
FLASHCARD QUESTION
Front
What defines 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
4.
FLASHCARD QUESTION
Front
Which of the following sets of values is a function? (9,5) (10,5) (9,-5) (10,-5), (3,4) (4,-3) (7,4) (3, 8), (6,-5) (7, -3) (8, -1) (9, 1), (2, -2) (5, 9) (5, -7) (1, 4)
Back
(6,-5) (7, -3) (8, -1) (9, 1) is a function because each x-value is unique.
Tags
CCSS.8.F.A.1
5.
FLASHCARD QUESTION
Front
What is the definition of a mapping in mathematics?
Back
A mapping is a relation that assigns each element in one set to exactly one element in another set.
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.A.1
6.
FLASHCARD QUESTION
Front
What is the difference between a function and not a function?
Back
A function has one output for each input, while a relation that assigns multiple outputs to a single input is not a function.
Tags
CCSS.8.F.A.1
7.
FLASHCARD QUESTION
Front
How can you determine if a graph represents a function?
Back
You can use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.
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