What is a function?
Functions, Tables, and Graphs

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation where each input (x-value) has exactly one output (y-value).
2.
FLASHCARD QUESTION
Front
What is the definition of a mapping?
Back
A mapping is a way to pair each element of one set with an element of another set.
3.
FLASHCARD QUESTION
Front
How can you determine if a mapping is a function?
Back
A mapping is a function if no x-value is repeated with different y-values.
4.
FLASHCARD QUESTION
Front
What does the graph of a function look like?
Back
The graph of a function passes the vertical line test; no vertical line intersects the graph more than once.
5.
FLASHCARD QUESTION
Front
What is an ordered pair?
Back
An ordered pair is a pair of numbers (x, y) that represent a point on a graph.
6.
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 by checking if a vertical line intersects the graph at more than one point.
7.
FLASHCARD QUESTION
Front
What is the slope of a line?
Back
The slope of a line is a measure of its steepness, calculated as the change in y divided by the change in x (rise/run).
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