The function is
[tex]y=2(10)^x[/tex]Domain is the values of x
The domain is all the real numbers
The range is the values of y that corresponding to the values of x
Since the initial value of y is positive, then any value of x will make y positive, then
The range is all the values greater than zero
[tex]\begin{gathered} \text{Domain}=\text{ all values of real numbers} \\ \text{Range}=\mleft\lbrace y\colon y>0\mright\rbrace \end{gathered}[/tex]