What is the theoretical domain of this graph?
\{x|x\in\mathbb{R}\}
\{x|x\in\mathbb{Z}\}
\{x|x\in\mathbb{B}\}
\{x|x\in\mathbb{N}\}
What is the practical domain of this function?
\{x|x\in\mathbb{R}, x\geq5, x\leq15\}
\{x|x\in\mathbb{Q}, x\geq0, x\leq55\}
\{x|x\in\mathbb{N}, x\geq5, x\leq60\}
\{x|x\in\mathbb{Z}, x\geq0, x\leq10\}