Texas Instruments TI-84 Guidebook - Page 321
correct coeffiecients for graphs of linear, quadratic and absolute value functions. This app is
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:"Asin(BX)"!Y1 :"Csin(DX)"!Y2 :GraphStyle(1,1) :GraphStyle(2,5) Define equations. Set line and path graph styles. :FnOff 2 :randInt(1,10)!A :randInt(1,10)!B :0!C:0!D :L2p!Xmin :2p!Xmax :pà2!Xscl :L10!Ymin :10!Ymax :1!Yscl :DispGraph :Pause Initialize coefficients. Set viewing window. Display graph. :FnOn 2 :Lbl Z :Prompt C,D :DispGraph :Pause Prompt for guess. Display graph. :If C=A :Text(1,1,"C IS OK") :If CƒA :Text(1,1,"C IS WRONG") :If D=B :Text(1,50,"D IS OK") :If DƒB :Text(1,50,"D IS WRONG") :DispGraph :Pause Display results. Display graph. :If C=A and D=B :Stop :Goto Z Quit if guesses are correct. Note: The Guess My Coefficients App is an educational game that challenges you to enter the correct coeffiecients for graphs of linear, quadratic and absolute value functions. This app is available at education.ti.com. Chapter 17: Activities 314