Question 136851
2x + 4y < 8
4y<-2x+8
y<-2x/4+8/2
y<-x/2+4
{{{ graph( 300, 200, -6, 15, -10, 10, -x/2 +4 ) }}} (graph 300x200 pixels, x from -6 to 15, y from -10 to 10, -x/2 +4). 
Here's the graph & the shaded area (<) would be to the bottom left.