**TI92**mainProgram: 01\20\1995 10:03:11 PMRshowpts8Z  x  x  xf ylowyhighylow xlowxhighxlowlst lstlstltfzeroxzeroxxzeroyzeroyxylowzfyhighylowzeroyxlowzxhighxlowzeroxf*)'&rect-coordinates-off-axes-function-graph-zeroyzerox }yhighylowxhighxlowlstP