Final answer:
The domain of the function x+11 is all real numbers, represented in interval notation as (-∞, ∞).
Step-by-step explanation:
The question is asking for the domain of the function x+11. The domain of a function refers to all the possible inputs or 'x' values that can be inserted into the function.
In this case, for the function x+11, you can plug any real number for 'x', and it will yield a real number as a result. Therefore, the domain of this function is all real numbers. In interval notation, this is written as (-∞, ∞).
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