Domain and Range
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the definition of Domain in a function?
Back
The set of all possible input values (x-values) for a function.
2.
FLASHCARD QUESTION
Front
What is the definition of Range in a function?
Back
The set of all possible output values (y-values) for a function.
3.
FLASHCARD QUESTION
Front
How do you find the range of a set of ordered pairs?
Back
Identify all the second elements (y-values) in the ordered pairs.
4.
FLASHCARD QUESTION
Front
What is the domain of the function f(x) = 2x + 3?
Back
All real numbers (since there are no restrictions on x).
5.
FLASHCARD QUESTION
Front
What is the range of the function f(x) = x^2?
Back
y ≥ 0 (since the output of x^2 is always non-negative).
6.
FLASHCARD QUESTION
Front
What does it mean if a function is defined only for certain x-values?
Back
It means that the domain is restricted to those specific values.
7.
FLASHCARD QUESTION
Front
What is the domain of the function f(x) = 1/x?
Back
All real numbers except x = 0 (since division by zero is undefined).
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