Identity Function f(x) = x

Last updated at April 16, 2024 by

f: R -> R

f(x) = x for each x ∈ R

i.e. y = x for each x ∈ R

 

Plotting graph

x

0

1

–2

y

0

1

–2

 

Identity Function.jpg

Here,

Domain   = All values of x = R

Range = All values of y

    = All values of x (Since x = y)

   = R

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo