I=&,dd   1Courier NewSymbol New1Courier New1Courier NewTimes New RomanTimes New Roman1Courier New1Courier New1Courier New1Courier New0:Q<0:Q<0:Q<0:Q<}d<_ p {?@3333333@4333333@?@@@@@@@@033333??@^ߛOw?hfffff???nH:@NH@@?@ @@@l^"t@@@2??@@@4333333@??????  L.42-50250seg (2,-50) to (2,50)hd2??h!@$$$@fffffff@???????fffffff@VUUUUUU?Āȁ̂ЃԄ؅.Lȅt4/(t-2)/(x,y) = (t,4/(t-2)); 4.000000 <= t <= 8.900000hd2??h!@$$$Q???????Q?4y8z<{@|D}H~L0TX0I-t 4/(-t-2)3(x,y) = (-t,4/(-t-2)); -4.000000 <= t <= -2.280000d2??h!@$$$?????????VUUUUUU?$(,048<JT\| Jt4/(t-2)/(x,y) = (t,4/(t-2)); 0.000000 <= t <= 1.725000d2??h!@$$$@???????@VUUUUUU?܆xK@/+t0-t 4/(-t-2)1(x,y) = (-t,4/(-t-2)); 0.000000 <= t <= 6.500000xyzHXT@@@@@@@@@@@@@@@@@@@@@@@@@@@@ H H Hseg (2,-50) to (2,50)lEpR033333@)WiRź@@(x,y) = (t,4/(t-2)); 0.000000 <= t <= 8.500000lEpR033333@~A&@(x,y) = (-t,4/(-t-2)); -4.000000 <= t <= -2.100000lEpR033333@Z/@(x,y) = (t,4/(t-2)); 0.000000 <= t <= 1.800000lEpR3333333@hRiޛ@h(x,y) = (-t,4/(-t-2)); 0.000000 <= t <= 6.280000lEpR3333333@ @