Checking correctness of an inequality in two variables in table

Questions
1

How to check the correctness of an inequality in two variables entered by a student in a table?

1 Like
2

There are a few ways of doing this when it’s an equation, not an inequality.
a) parseEquation and use lhs rhs
b) parseEquation and difference functon
c) use a two variable function and check with a list

However, with an inequality these methods don’t work. I haven’t built one myself, but I imagine you would need to use parse and look for specific values in the latex that students are entering in the table. I hope this helps.

4

In the graph component:

f9a=parseEquation(Table.cellContent(9,2)).lhs
f9b=parseEquation(Table.cellContent(9,2)).rhs
function("f_9"): simpleFunction(f9a,"x","y")

Takes students equation of an ellipse and makes it into a function that I check with in the graph:
image

It’s slide 7 in this AB:

But it may be hard to follow. There is a lot going on in this activity beause it is an infinite problem set with like 6 different problem types. It might be easier for you to share whatever it is you are working on.

Hope this helps.