Texas Instruments TI-83 PLUS - Manual (Page 578)

TI-83 Plus Activities 575
:1!Yscl
:DispGraph
:Pause
Display graph.
:FnOn 2
:Lbl Z
:Prompt C,D
Prompt for guess.
:DispGraph
:Pause
Display graph.
:If C=A
:Text(1,1,"C IS OK")
:If C
ƒA
:Text(1,1,"C IS WRONG")
:If D=B
:Text(1,50,"D IS OK")
:If D
ƒB
:Text(1,50,"D IS WRONG")
Display results.
:DispGraph
:Pause
Display graph.
:If C=A and D=B
:Stop
:Goto Z
Quit if guesses are correct.