If you were graphing equations in the y= screen, chances are that you have Plot 1 or one of the other plots on. You can tell if this is the case if you have a black box over plot 1, plot 2 or plot 3 in the y= screen. To turn of the plot with the black box over it, arrow up and over if needed to highlight this black box. Press enter and you will turn the plots off and should be able to graph.
Another solution is is press the 2nd key, then the + key, then the 7 key, then the 1 key & the 2 key. This clears the RAM and resets the calculator to the original factory defaults.
Remember.....2nd....+....7.....1....2
Hope this helps/
141 views
Usually answered in minutes!
×