u <= -1 or u >= 5
draw a dot at -1 and shade to the left
draw a dot at 5 and shade to the right
you can see the graph at
http://www.wolframalpha.com/input/?i=solve+|4u-8|+%3E%3D+12+
Graph the solution to the inequality on the number line
|4u-8|=>12
1 answer