Graphing Non-Strict Inequalities

Hi! In this activity students select three constraints and they get populated into a table. From there students are to click a button that will display the system of inequalities. My question is, how can I get dashed lines to appear on the graph if they select x < 70 on screen 1? Thanks!

I started this a few months ago and haven’t worked on more, but slide 1 has what you need. Note in the parseInequality folder in the graph there are two inequalities. Only one will display depending on whether strict or not.