reset everything? NOOOOOO
1) Find the APPs
2) up one time to "Transfrm"
3) If you enter on it and it brings up a TI screen, you are launching this app which limits you to graphing ONLY ONE EQUATION
4) repeat steps one and two BUT when the app is on, it will ask to uninstall or continue. PICK UNINSTALL (it doesn't actually uninstall, it just turns off the Transfrm app. And now your graphing is back to normal.