# If f(x) is a function and f(1) = 5, then which of the following could not be true? f(1) = 1 f(2) = 1 f(5) = 5

2 answers

###### Question:

If f(x) is a function and f(1) = 5, then which of the following could not be true?

f(1) = 1

f(2) = 1

f(5) = 5

f(1) = 1

f(2) = 1

f(5) = 5

## Answers

It can't be f(1) = 1 because a function can't have two images on the same x.

F(1)=1 is incorrect.

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