Question 36491
In this case, you can find the domain and range by realizing that this is a straight line in the form y=mx +b.  The straight line extends all the way to the left and right, so 

Domain = (-inf, inf) 


The graph extends all the way down and all the way up on the graph, so 

Range = (-inf, inf) 


Of couree the graph is 
{{{graph (300,300,-6, 6, -6, 6, x-2) }}}


R^2 at SCC