The inequality is .
The above equation can be write into two equivalent inequalities:
\.
Solve the inequality to find w.
Subtract 9 from each side.
\Divide each side by 2.
\Solve the inequality to find w.
Multiply each side by negative one, so flip the symbol.
\Subtract 9 from each side.
\Divide each side by 2.
\So or
.The solution set is
.
Graph the solution set on a number line.
\Note: A circle means that this point is not included in the solution set.
The solution set is and the inequality
of number line graph is