crwdns2934241:0crwdne2934241:0 Lilly Perham

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Why won't my calcualtor graph?

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Everytime I try to hit the graph button the calculator says error: window range. I go to the window button, but everything there seems normal. This first happened after I tried to switch the ranges (ymin and ymax and xmin and xmax)

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Texas Instruments TI-83 Plus

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open