Question

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

1) f(1)=1

2) f(2)=1

3) f(5)=5

Answer 1

I don't know ? I need help

Answer 2

@Bebong bas mistake

Answer 3

do you know how a function is defined?

Answer 4

what are the requirement conditions for f to be a function? got it?

Answer 5

no why did you answer?

Answer 6

\[f(1) \neq 1\] a function is defined as of each input value, you'll only get one output value. Therefore f(1) = 1 is not true.

Answer 7

if f(1)=1 and f(1)=5, then this function never satisfies the one-to-one condition. so it won't be a function unless ....

Answer 8

unless f(1) takes only one value...

Answer 9

Umm?

Answer 10

your reasoning led to a response by chance. it always might not be true