TEKS 8.5G
Flashcard
•
Mathematics
•
8th Grade
•
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 between a set of inputs (x-values) and a set of possible outputs (y-values) where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
How can you determine if a set of ordered pairs represents y as a function of x?
Back
A set of ordered pairs represents y as a function of x if no two pairs have the same x-value with different y-values.
3.
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, then the graph does not represent a function.
4.
FLASHCARD QUESTION
Front
What does it mean for y to be a function of x?
Back
It means that for every value of x, there is exactly one corresponding value of y.
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.
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 ordered pairs {(1, 2), (1, 3)}, where the x-value 1 corresponds to two different y-values.
7.
FLASHCARD QUESTION
Front
What is the definition of an ordered pair?
Back
An ordered pair is a pair of numbers (x, y) where x is the first element and y is the second element, representing a point in a coordinate system.
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