Add and subtract functions

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a function in mathematics?
Back
A function is a relation that assigns exactly one output for each input. It can be represented as f(x), where x is the input.
2.
FLASHCARD QUESTION
Front
How do you add two functions?
Back
To add two functions f(x) and g(x), you combine them as (f + g)(x) = f(x) + g(x).
3.
FLASHCARD QUESTION
Front
What is the result of adding f(x) = 2x + 3 and g(x) = x - 5?
Back
(f + g)(x) = (2x + 3) + (x - 5) = 3x - 2.
4.
FLASHCARD QUESTION
Front
How do you subtract one function from another?
Back
To subtract two functions f(x) and g(x), you combine them as (f - g)(x) = f(x) - g(x).
5.
FLASHCARD QUESTION
Front
What is the result of subtracting g(x) = x - 5 from f(x) = 2x + 3?
Back
(f - g)(x) = (2x + 3) - (x - 5) = x + 8.
6.
FLASHCARD QUESTION
Front
What is the domain of a function?
Back
The domain of a function is the set of all possible input values (x) for which the function is defined.
7.
FLASHCARD QUESTION
Front
What is the range of a function?
Back
The range of a function is the set of all possible output values (f(x)) that the function can produce.
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