# Functions and Relations - Help!

Given that : \begin{align} &f: D_1 \rightarrow \mathbb{R} \\ & g: D_2 \rightarrow \mathbb{R} \end{align}

Find, $f + g : D_1 \cap D_2 \rightarrow \mathbb{R}$.

$f+g$ will be defined as $(f+g)(x)=f(x)+g(x)$ for all $x\in D_1\cap D_2$.