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HELP

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function f(x) { y = 1/0; return y }
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aX = -5; bX = 45; aY = -2; bY =18 
Dx = 1; Dy = 1/2.5
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xx=[-5,5,10,15,20,25,30,35,40,45]
yy=[-2,2,4,6,8,10,12,14,16,18]
Qx=Lx=[3,13,18,26,35]
Qy=Ly=[2,8,5.2,17.2,17.2]
C1="red"; L1x=[3,35]; L1y=[2,17.2]
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AX=BX=AY=BY=""
AY="20"; AX="8"
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AAX=""; BBX=""; AAY=""; BBY=""
AAX=aX; BBX=bX; AAY=aY; BBY=bY
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T0=["V",2.5,1]; T1=["X",17.5,4.3]; T2=["W",13,8.8]; T3=["Y",23,17]; T4=["Z",37,17]
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