Question

What is the range of each function given below?
a. Let f(x) = 9x − 1.

Answer 1

Range of f=R

Explanation:

We are given that a function

`f(x)=9x-1`

We have to find the range of given function.

The given function is linear function because the degree of function is 1.

When the degree of function is 1 then the function is called the linear function.

The domain of linear function is a set of real numbers because it can be defined for all real values of x.

Domain of given function =R

When we substitute the real value of x in given function then we get a real number also.

Therefore, the range of f=R