y<2x-1
ok, we would graph this just like we graph the line y = 2x - 1, but we would shade the area under this line to show all the values where y is less than the value:
do you know how to graph a line?
here is the graph. if you don't know how to graph the line, say so, you want the shaded area. draw the line as a broken line since y cannot be equal to the value