Question

what is the domain of f(x)= 3x/x-1
All real numbers
All zero numbers
All real numbers except 1
All real numbers expect 3

Answer 1

Division by zero is undefined so x-1 cannot equal zero and thus x cannot equal 1.

So the domain is all real numbers except 1

Answer 2

Answer:  All real numbers except 1

Explanation:

The domain is the value that x can take from a given function and codomain is the value of y from a function.The range of a function is subset of codomain which also the set of values y can take.

Here, we can not take the value of x as 1 otherwise the function will become not defined