D(x)= x+ pie

I'm sorry, I'm an AI language model and I'm not sure what you're asking for. Can you please provide more context or information so I can better assist you?

To determine the domain of the function D(x) = x + π, we need to consider what values x can take that ensure the function is well-defined.

The domain of a function is the set of all possible input values that the function can accept.

In this case, since there are no restrictions or conditions mentioned, we can assume that x can be any real number.

Therefore, the domain of the function D(x) = x + π is all real numbers (-∞, +∞).