Question

If f(x) is the identity function, then f(2) equals

Answer 1

Answer:

2

Step-by-step explanation:

identity function returns the same value as put in its argument.

f(1)=1

(2)=2

f(x)=x

Answer 2

Given : f(x) is the identity function

To find :  value of  f(2)

Solution:

First lets understand what is identity function :

An identity function, is a function that always returns the same value that is used as its argument.

That is, for f being identity function , the

f(x) = x holds for all values of x.

identity function is also called an identity relation or identity map or identity transformation,  

Hence  f(x) = x

now its given x = 2

=> f(2)  = 2

f(2)  = 2   if  f(x) is the identity function

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