Question 369391
The domain shows the possible x values.
For each x value compute the y value.
I'll do one, you do the rest.
{{{6(-2)-3y=18}}}
{{{-12-3y=18}}}
{{{-3y=30}}}
{{{y=-10}}}
So {{{-10}}} is the first element in the range. 
{-10}
Continue for the remaining x values.