If f-1(-25) = 7, what is f(7)?
Inverse Functions

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Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
-25
2.
FLASHCARD QUESTION
Front
What does it mean to find the inverse of a function?
Back
The x's and y's are switched.
3.
FLASHCARD QUESTION
Front
Find the inverse of the function f(x) = 3x - 5.
Back
f-1(x) = (x + 5) / 3.
4.
FLASHCARD QUESTION
Front
In an inverse function, the _____ and _______ are switched from the original.
Back
Input and output.
5.
FLASHCARD QUESTION
Front
If the domain of f(x) is x ≥ 4, then the ____ of ____ is y ≥ 4.
Back
Range, f-1(x).
6.
FLASHCARD QUESTION
Front
What is the definition of an inverse function?
Back
A function that reverses the effect of the original function.
7.
FLASHCARD QUESTION
Front
If f(x) = 2x + 3, what is f-1(x)?
Back
f-1(x) = (x - 3) / 2.
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