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1 vote
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

User Dropout
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2 Answers

3 votes
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
User Gregg Rivinius
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Answer: All real numbers except 1

Step-by-step 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

User Demurgos
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