I'll be back later sorry
You must have turned on the application that comes with most calculators called "Inequals" This program can be turned off by going into your apps list and running the program. You can also just reset the calculator and it will fix the problem.
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WHEN I PRESS THE Y FUNCTION OF MY CALCULATOR A LETTER X APPEARS ONTHE UPPER LINE WHERE I HAVE THE PLOT 1,PLOT 2 AND PLOT THREE AND RIGHT AT THE BTTOM OF THE SCREEN THE FOLLOWING SIGNS APPEAR =,<,>,<,>
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