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andrezito [222]
2 years ago
11

Which function has an inverse that is also a function?

Mathematics
1 answer:
aalyn [17]2 years ago
4 0

Answer: 1st, 3rd, and 4th functions

Step-by-step explanation:

Assuming k(x)=9x^2, all the other functions have inverses because they are linear, meaning they must be one-to-one.

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If we name contents of the first set as n, in the second set you can have 2n-1 numbers (because we count 0 only once in both sets).
7 0
3 years ago
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Ivan
<h3>Given</h3>

... f(x) = x² -4x +1

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Gimme a few mins, imma edit this later... ;-;

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