Solve the inequalities below. Check your solutions, if possible.
Note the absolute value. When is the absolute value of a quantity greater than or equal to
all real numbers
Rewrite the inequality as an equation, factor, and solve for
. Since this is an inequality, these are the boundary points.
The boundary points are
Plot your boundary points on a number line. Test a point in each region to see which region(s) make the inequality true.