I’m wanting to ask students to type several equations (of horizontal and vertical lines) into a table.

Then I want the equations to appear on the graph.

As an example: they might type x=2 and x=4 and the first two lines of a table (the table has 1 column.)

How do I turn the cell content into latex? Or do I skip that?

How do I reference an equation that’s a relation, but possibly not a function?