13/3 would be the answer :3
The domain is the set of feasible inputs, i.e. the x-coordinates in which you can evaluate the function.
We can see that this function is defined only for x values between -1 and 3 (included), so this is your domain.

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Answer source comes from Wolfram Alpha.
Answer:
Step-by-step explanation:
It's blurry. If I could see it maybe I could help you.