Composition of Functions

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•
Mathematics
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the composition of functions?
Back
The composition of functions is a process where one function is applied to the result of another function, denoted as (f∘g)(x) = f(g(x)).
2.
FLASHCARD QUESTION
Front
If g(x) = 3x + 4 and h(x) = 3x - 1, what is (g∘h)(x)?
Back
(g∘h)(x) = 9x + 1.
3.
FLASHCARD QUESTION
Front
What does p(q(x)) mean if p(x) = 3x + 4 and q(x) = 2x²?
Back
p(q(x)) means to substitute q(x) into p(x), resulting in p(q(x)) = 6x² + 4.
4.
FLASHCARD QUESTION
Front
How do you find g(-2) if g(x) = 3x + 4?
Back
Substitute -2 into g: g(-2) = 3(-2) + 4 = -6 + 4 = -2.
5.
FLASHCARD QUESTION
Front
What is the result of f(g(5)) if f(x) = 3x + 10 and g(x) = x - 2?
Back
f(g(5)) = f(3) = 3(3) + 10 = 19.
6.
FLASHCARD QUESTION
Front
What is (f ° f)(-2) if f(x) = 2x² - 1?
Back
(f ° f)(-2) = f(f(-2)) = f(7) = 97.
7.
FLASHCARD QUESTION
Front
What is the notation for the composition of functions?
Back
The notation for the composition of functions is (f∘g)(x).
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