I present how transformations can be applied to support students’ solving linear inequalities involving absolute value. In particular, the horizontal dilations/compressions and translations of graphical representations of distances from zero along a number line are important tools to emphasize a visual representation of the solutions to absolute value inequalities.
Fox, Ryan D.
"Combining transformation of graphs with solutions to absolute value inequalities,"
Colorado Mathematics Teacher: Vol. 53
, Article 1.
Available at: https://digscholarship.unco.edu/cmt/vol53/iss1/1