My friend (who's in Trig) borrowed my graphing calculator and changed some things around in it, and I have no idea how to fix it now. -_-; {I'm in Algebra}

I need to use the 1-Var Stats, but when I go into stat and hit Edit, the top two columns say INEQX and INEQY.

Help returning these to normal would be appreciated. ''orz

(I have a TI-84 Plus)