'ProgramMode:RUN
"X-BAR"?->P
"Y-BAR"?->Q
"SX"?->U
"SY"?->V
"R"?->R
R*V/U->M
Q-M*P->B
ClrText
"M*X+B"->GraphY1
Locate 1,2,"_GraphY_1=MX+B"
Locate 1,3,"M="
Locate 3,3,M
Locate 1,4,"B="
Locate 3,4,B