f: R R

f(x) = c for each x ∈ R

i.e. y = c for each x ∈ R

Here c is a constant.

 

Plotting graph

For all values of x, value of y will be c

x

0

1

–2

y

c

c

c

 

Constant Function.jpg

Here,

Domain   = All values of x = R

Range = All values of y

           = c (Since y = c)

 

So, Range = {c}

  1. Chapter 2 Class 11 Relations and Functions
  2. Concept wise
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 7 years. He provides courses for Mathematics and Science from Class 6 to 12. You can learn personally from here https://www.teachoo.com/premium/maths-and-science-classes/.
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