# Point checking - Credit: Eric Berger

A circle appears around the ordered pair entered in a table.

Iâ€™m trying to create a transformation activity where the students translate (or rotate or reflect) given pre-image points to their image location based on directions (like "translate right 3 units and down 2 units), and then type the coordinates for the image points in a table. I was hoping to check both the location of the points plotted as well as the coordinates that they type in the table. Iâ€™m able to check the plotted points, but canâ€™t seem to figure out how to check the coordinates in the table that would be listed as an ordered pair. I feel like the example above could be used to check the coordinates in the table, but I canâ€™t see the CL because it wonâ€™t let me copy the activity (it says â€śThis activity canâ€™t be copied because it contains a deprecated feature.â€ť). Do you have any other ideas to check the ordered pairs in the table?
Hereâ€™s what I have so far:

``````isCorrectT1=parseOrderedPair(this.latex).x=8
and parseOrderedPair(this.latex).y=8

cellContent(1, 4):
when table.submitted
(when isCorrectT1  "âś…"
otherwise "âťŚ Try again.")
otherwise ""
``````

I threw in using a nested `when-otherwise` so you donâ€™t have to use `not(submitted)`. Can be really handy with more complicated checks.

Rather than setting actual numbers, you could also have correct values in graph and use graph numbers instead of 8 (useful if you start using randomized values, though tricky with triangles, tbh).

Thanks so much for this! Iâ€™m still really new to CL, so Iâ€™m not sure what the error I have right now means. I used what you shared with me and the error says:
component â€śtable1â€ť has no source â€ślatexâ€ť and then gives me some options.

Any ideas?

``````isCorrectT1=numericValue("\${parseOrderedPair(this.cellContent(1,3)).x}")=8
I forgot `parseOrderedPair` outputs latex, not numbers, and forgot to identify the cell.