Checking Points in systems of Inequalities

I’m trying to write this activity to take a graph and ask the students to plot points in the solution area. I have the ability to plot the points from a table but I would like to check for correctness so I can see the :white_check_mark: on the dashboard.

Any insight will be useful. (This is my first time using NumberList as well so sorry if this is a simple question)

You can build the check in graph: Desmos | Graphing Calculator

Then add a correct sink to the graph CL correct: this.number("I_c") = 1

Don’t forget to mark the table as readOnly