The domain is the set of values of x. The range is the set of values of y.
[tex]x-2y=0 \hbox{ for the domain } \{-1,0,4 \} \\ \hbox{plug the values of x into the equation and solve for y:} \\ \\
-1-2y=0 \\
-2y=1 \\
y=-\frac{1}{2} \\
y=-0.5 \\ \\
0-2y=0 \\
-2y=0 \\
y=0 \\ \\
4-2y=0 \\
-2y=-4 \\
y=\frac{-4}{-2} \\
y=2 \\ \\
\hbox{the range: } \{ -0.5, 0, 2 \}
[/tex]
The answer is {-0.5,0,2}.
