Unit 5 Pre-Algebra Functions Review
Flashcard
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Mathematics
•
8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a function?
Back
A function is a relation where each input (x-value) has exactly one output (y-value).
2.
FLASHCARD QUESTION
Front
How can you tell if a graph represents a function?
Back
A graph represents a function if any vertical line drawn through the graph intersects it at most once (Vertical Line Test).
3.
FLASHCARD QUESTION
Front
What does it mean if a table is not a function?
Back
A table is not a function if any x-value is paired with more than one y-value.
4.
FLASHCARD QUESTION
Front
What is the x-intercept of a graph?
Back
The x-intercept is the point where the graph crosses the x-axis, represented as (x, 0).
5.
FLASHCARD QUESTION
Front
What is the y-intercept of a graph?
Back
The y-intercept is the point where the graph crosses the y-axis, represented as (0, y).
6.
FLASHCARD QUESTION
Front
What is the slope of a line?
Back
The slope of a line measures its steepness and is calculated as the change in y divided by the change in x (rise/run).
7.
FLASHCARD QUESTION
Front
What is the equation of a vertical line?
Back
The equation of a vertical line is of the form x = a, where 'a' is the x-coordinate of any point on the line.
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