When you solve the inequality, you'll get something like this: x< a or x > a, where a is a real number. If the inequality symbol allows for the possibility of equality ( or ), draw a solid dot at a. If, on the other hand, the symbol is either greater than or equal to or less than equal to, draw an "open dot," or a circle, at the a value.
Draw a dark arrow from your dot that points in the direction of the inequality symbol. If your final solution contained one of the less than symbols, draw the arrow to the left. If the solution contained a greater than symbol, the arrow (like the symbol) should point right.