**TI83F* Program file 10/31/03, 00:13“ ‚SLOPE‚€Ü*X1>*+X?Ü*Y1>*+Y?Ü*X2>*+[?Ü*Y2>*+Z?á?YqZV?Xq[W?ÎVj0?Ï?Þ*0)SLOPE*?Ð?ÎWj0?Ï?Þ*UNDEFINED*?Ð?VƒW[?[XA?YqAB?Þ*Mj*+[+*Bj*+B?Ø?áý,