What is a function?
Properties of Functions

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•
Mathematics
•
9th - 11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A function is a relation between a set of inputs and a set of possible outputs where each input is related to exactly one output.
2.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain of a function is the complete set of possible values of the independent variable (input) for which the function is defined.
3.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range of a function is the set of all possible output values (dependent variable) that result from using the function.
4.
FLASHCARD QUESTION
Front
How do you find the x-intercept of a function?
Back
To find the x-intercept, set the output (y) to zero and solve for the input (x).
5.
FLASHCARD QUESTION
Front
What does it mean for a function to be increasing?
Back
A function is increasing on an interval if, for any two points in that interval, the output value at the second point is greater than the output value at the first point.
6.
FLASHCARD QUESTION
Front
What does it mean for a function to be decreasing?
Back
A function is decreasing on an interval if, for any two points in that interval, the output value at the second point is less than the output value at the first point.
7.
FLASHCARD QUESTION
Front
What is a continuous function?
Back
A continuous function is a function that does not have any breaks, jumps, or holes in its graph.
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