Make points appear on graph when entered in table

Questions
1

I am trying to make each point appear in the graph and connect the points after all 3 are entered in the table so students can visually see if they reflected the triangle correctly.

Not sure where my mistake is.

Thanks!!!

2

You need to use cellContent rather than cellNumericValue, and you’re also missing a closing bracket.

Try

number(`a`): numericValue(parseOrderedPair(table.cellContent(1,2)).x)
number(`b`): numericValue(parseOrderedPair(table.cellContent(1,2)).y)

etc.