If you ran the dynamic graphing application called Transfrm you will only see one graph. It takes over the graphing from thge native OS.
You will recognize it by the graph style at the left of the Y1=, etc. as in picture
As you can see, only one = is highlighted, meaning only Y1 will be drawn. To recover the native Y= screen, you must unload the TransfrmApp from memory.
Here is how to do it.
Exit what you are doing and go to main calculator screen.
Press the Apps button.
Scroll down to find the Transfrm App
Highlight the : before the name and press ENTER.
The screen appears as on the second screen capture above
Press 1:Uninstall
This will unload it from memory and you will be able to draw multiples graphs.
There is the possibility that the failure to draw multiple graph has nothing to do with Transfrm. In that case it is most likely due to the Stat Plots being turned ON. Turn them OFF
Press [2nd][Y=] (STAT PLOT)
Select [4:PlotsOff] and press [ENTER]
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