Question

What are the domain and range of the function f(x) = 4?

 x is a real number; y

x; y

x; y

 x > 4; y

Answer 1

The answer should be number 3

Answer 2

Domain x; y = 4.

Explanation:

Given : f(x) = 4.

To find : What are the domain and range of the function.

Solution : We have given f(x) = 4

Domain : The set of all input values for which function is real and defined:

(-∞ , + ∞).

Range : The set of dependent variable on which function is defined.

The range of constant function is always constant.

So, range = 4.

Therefore, Domain x is a real number; y.