新人教版代数九年级上教案

新人教版代数九年级上教案

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时间:2023-04-26

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27L2ÒÓxLᡈyḄTÆ×ØÇTyLᡈx,ÇX᪵ᙠ/£ᕖB᝞Óx=-2ÆyḄT.ᵫᐜᯠ!ÜÝÞ£ᑮyḄÇT,ᨬ!hi`X᪵ÞḄ.LÞᚖL3rᔲ£ᑮáḄx×yḄÇTÞ!Ãi?â.L4ÒÆÈÉ3x+12=0ḄÊQÈÉ3x+12=0×Cᦪy=3x+12Ḅᐵç▭½`Æhiᯠ!<=>?ÆÈÉ3x+12=0ḄÊᐸç½`QCᦪy=3x+12Ḅy=0ÇḄxḄTé½`Q×x¤êḄëᙶ᪗.LìíஹîḄ6×ï᪗8ᡂðÉ7⁚ÀḄí`ABCᦪ×,CᦪḄòᵫ>?"#CᦪḄឋ.·róôᑭᙢõöḄÈ÷✌ᐜù,%úḄûឋ^ü,CᦪḄ`,ᩩO;Jðeþü"ᑮ,ᩩOÿ⌕⍝ᓽᯠᦪ•ᦪḄ!"#ᡂ%&'()*Ḅ+,-.ᵨ.ᙠ2Ḅ3Ạ5ᵫ)*789:;ᯠᦟ=>ᐵ(@ᓄḄB⚪7)*!"DEF)*GHᑭᙢKᑮᦪMᦪḄឋO.᦮⁚RḄᐵὶឋTMUᡷMU'()*ḄWὃ.YZ[᡽]ᦟ=>B)*Wὃ^_`Y1[ᦪy=kxḄfgY2[Mᦪy=kx+bḄfgY3[ᦪy=kxMᦪy=kx+bḄឋOlm᪵opḄgqrst⌕+uvᦪḄឋOw"gYMᦪḄឋO[sxygYᦪlMᦪḄᱯMᦪᐹᨵḄឋOᦪ}ᐹᜓ.[Y4[ᡃlᵫxyKᑮᦪḄឋOḄgY5[ᔲὃ⇋ᵫ᪆Kᑮᦪy=kxMᦪy=kx+bḄឋOᕖgᵫ)*)*Ḅlᔲᔣ)*vB⚪._`▭5y=0.5x.f77.Yxi,yi[YX2,y2[᝞Xi>X2,ᵫk=0.5>0,K0.5xi>0.5x2,ᓽyi>y2.wl¡7(y=kx,¢k>0,ᑣy¤xḄ¥ᜧ§¥ᜧ.¨©ᙢ"¡ªy=-0.5xḄឋO-y=2x+1,y=-2x+1ḄឋO.Zஹ®¯°1.ᦟᩞ²⚪13.5A´µ1ஹ2.2.⌱·`B´1.¹ஹº»¼½

2813.5IᖪYḄᶇ᠄\]^09_LO.5ILM☢`Ḅឋb."■+1_y=-2rl-lLMᑠᦱe⌱f/SτMᦪḄ-ឋOY¾[Mஹ¿OᦟÀÁ᪗YM[Ãᦟ)`1.IJMᦪḄᭆÆஹឋOḄᨵᐵÃÇ2.F)*ÈᵨÉÊᦪËÌᦪMᦪḄ᪆8§ᳮÉÊᦪË.Y¾[ÎÏÐ`1.ÑÒ)*ᑖ᪆ஹÔÕஹḄÎÇ2.ᔣ)*Ö×”ÉÊᦪË”Ḅ.ᵨ.YÙ[ÚÀÖ×`ᙠ“ÉÊᦪË”Ḅᦟ)µᔣ)*Ö×ÜᓄḄWÝ.¾ஹᦟ)Þஹß-ᶧ1.ᦟ)Þ`ᵨÉÊᦪËáᦪMᦪḄ᪆.âstᨵáã᪆äẆæçḄឋO.2.ᦟ)ß`ᵨÉÊᦪËáᦪMᦪḄ᪆.âs)*èéêÉÊᦪ˧ëìᵨÉÊᦪËí⌕ᙠªáᦪᱯîḄ3Ạ589.Ùஹᦟ)ïðY-[ªáÁ᪗5⁚RᡃãMᦪ-ᦪᡃñò⍝ãm᪵᪷ôᦪ᪆çḄí᪷ôKᑮãçḄឋOõᡃ.᝞öáçḄ᪆ᕖg⁚RᡃwᩭMøÞ⌕Ḅᦪ)ùË——ÉÊᦪË"û᝞öᵨÉÊᦪËᩭáᦪûMᦪḄ᪆.Yº»[Y¾[᦮üý✌ᐜᡃᩭ⁚ᡠḄ1.ᦪᦪ2.᪵ᦪy=kxḄ!3.᪵ᦪ"=1«<+13Ḅ!4.ᦪy=kx$ᦪy=kx+bᨵ᪵Ḅឋ'ᵫ)*+,-./012⊡ᐙᓽ6.

29☢ᡃᩭ89:⚪<=>?@AB9ᦪCDEFx=3GᦪHy=5,IJKJᑏ=M9ᦪḄN᪆P᝞RJI᝞Sᑏ=ḄᕖUM᪵Ḅ9:⚪VWXYKZ[\=ᦪḄ:⚪ᩭN]^⌕`V)a[bcdeᦪfg9hijᨬlᓫḄnᑖpqẆsᨵtu)vὃஹyẚM9hijY{ᑭ}~ᑮᦪ.M9:⚪ᐜᵫ)Ḽᵫuh)6Jg{ᑭN]^⌕ᵫM9:⚪)N⚪v᝞SᑮḄM9vᯠ.ᙠ),ḄẠᦟᳮ{vU:1.᪷B⌕dḄᦪ9ᦪ2.ᦪḄP᪵Ḅ3.⌕dM9ᦪᐸ⌕d?@AB9ᦪCDEFx=3GᦪHy=5,Cx=-4Gy=-9.JKJᑏ=M9ᦪḄN᪆P)»⚪vὃ-.U:ᨵ¼ᨵ½J¾¿ὁᩭᑖ᪆ÁÂNM9:⚪ᵫu☢B³ᑖ᪆}µN]ᦪḄ:⚪YN]ᦪḄ:⚪$ÃÄᐰÆÇᡠÈuÉḄ)M⍝⚪BÄᐰ6DËN].`ªᙠªᜐ6ᐙᑖͲ)ᙠᚪḄ^ÍÏᵨÐ)⊤²DᡃḄÒgÓÔÁÕÖ)ḄJ×.YØÙG6j)Ḅᑖ᪆ÁÂN}¦ÚÛ²ÜᙠḄ:⚪GÝ.¡)ÂNḄÞß:⚪⌕GÐàdÐ)ᡂâḄÍãÓÔ)ḄDäåÁD^N]:⚪ḄJ×.)ÂNæç-.ᦟU:1.᝞R☢Ḅ:⚪¢⍝Cx=3Gy=5,JKJᑏ=M9ᦪḄN᪆PVM9:⚪èJé)êëìᳮNcdeᦪfḄN⚪íᑣïJÓÔ)vðḄñòឋ.2.IJᔲ᪷ᵨcdeᦪf§ᦪ$ᦪḄN᪆PḄ}¦,:⌕d9ᦪḄN᪆Pᵨ±iᵫ]dḄM9:⚪^⌕Vµ)JÈᡠḄᡂôõöu÷øÁ°ᵨ.3.ù☢ᡃúûüᜩᡠḄdᦪN᪆PḄ¥fþÿᜧᦪᔩᐜᵫ⌕Ḅ!"#$ᨬ&'ᵫᦟ)*+,-./0᪵ᐜ23456Ḅ78ᦪ'᪷:ᩩ<=378ᦪ>?ᑏ30A45ḄBCᦪ.☢!FᜧGᵨᦪIJᩭLM⍝⚪.P3QRSTUW8XYZ=!«<+5`abP9,10cbP24,20,=kcb.

30de:XYy=kx+b`ab(9,10)cb(24,20)ghi?"klmᡂ0⍝U⚪┐pmᡂḄqrs#*+d3the⚪.uv⚪1ஹ2.xyz{,|ᐸ~{ᙠuvmᡂᦟ)ᢇᦋ.ᵫ0y⍝uv⚪.⌱ᵨbḄAᦪ⌕ḄᦪAᦪ{.☢ᡃv$᝞ᵨᦪUᦪᦪḄL᪆4{ᡃv$᪷:L᪆43☢ᡃᩭ⍝uv⚪.(3QRS)2.aḄ--ᦪḄᑡe⚪.(1)k>0y=kxḄ`a¡¢A▲kVOᕖ(2)b>0y=x+bḄ`a¡¥A▲b<0ᕖ(3)ᔲ*+3y=kx+bḄ`a¡¢A▲§a0¨Ae⚪©sªpᦪḄᳮLᦪkcbpᦪḄ¬®ᡂᨵ°±Ḅ²m᦮Ḅ8´.:pµUᦪZ=1«<Ḅ.(1)k>0`aஹ¨▲¶(2)kVO`a·ஹ¸▲.pµᦪy=kx+bḄ:hi.4.ᧅk(I)k>0V

313LBÁᡈBÁò=3ᦪḄâ>?ᑏ3ᡠ=ᦪḄL᪆4.3.᝞Uᦪ•ᦪḄᡠ`aḄ▲4.ᢣ3ᦪy=kx+bḄ`a·ஹ¨ஹ¸▲kbḄöâøᔩ0Ae⚪Ḅd3ù⌕gúûḄ⌮ᔣiþÿ.ஹᦟᩞ⚪13.5A4ஹ5,6.ஹ13.5Im≆\ឋb4ᱯ?ᦪp/,ᦪsiḄt▲,q*CDClkு02k<0b>0COk>0b<0y=kxH>bb>02K0b<0ᦪ=2*2Ḅஹᦟ!"᪗~%&ᦟ'()1.*'+%⍝ᦪḄ-./2.*'+0ᵨ2(345ᦪy=x2Ḅ678ᔠy=x2Ḅ6:;ᳮ=>ᱥ@AᐸᨵᐵᭆF.GHIJ()1.K;LM'+ᵨ2(34ᦪḄGH/2.ᔣ'+KOᦪP8ᔠḄᦪ'QRS3Ḅᦟ!.TU!VW()XYZ[\ᱯ^ḄᦪḄ_=6ᔣ'+KO`aᱯ^Ḅbcdᱥe.ᦟ!.ஹᦟ'f(ஹg(hᶧ(1.ᦟ'f()ᦪḄ-.Aᦪy=x2ḄḄ43.jklmnẆpᦪḄf⌕rẠ.2.ᦟ'g()tu45ᦪy=x2Ḅ.jklḄnᩩw@64xᩭz{ᩖ6}~'+ᙠ46ᦪy=x2ḄḄᐹPhᓄ6ᡠ᧕.Tஹᦟ';-u"᪗

32ᡃmᙠᦪḄr%&ḄrẠᱯ^Ḅᦪ—ᦪᒹ¢t£¤ᦪ6¥¦ᜩ¨©6ᡃmªᩭ«ᱯ^Ḅᦪ——ᦪ.᦮%✌ᐜ6ᡃmᩭ°±\²▭´⚪)5µ¶·1.ᙊḄ¹ºnR,lḄ☢¼kS,½Gᔲᑏ5SaRÀḄᦪᐵÁÂÃÄ\´⚪ᵫ'+ÆÇÈÉ6ÊËÌzÍḄ'+Îᡂ6LMÐmḄÑa-&hÒÓÔ.ᯠÖÉᫀᑏᙠØᶇᵨ.2.%\ÚPÛᙢḄᕜÞn60,ßÞk/,â½ᑏ5Ä\ÚPÛᙢḄ☢¼SaÄᩩßÞÀḄᦪᐵÁÂ.Ä\´⚪ᐸ²ãn13.2Ḅ¤1,Êᵫ'+ä58å6æ'+ç5ḄnS=l30-/,èéêë´)½GᔲᦪᐵÁÂḄ¢ìíᣵÃᯠÖᡠäḄ8åᑏᙠØ.ë´)£zS=nR2aS=30'/2ı\ᦪ6ïnᵨÒðḄñÂᩭ⊤µḄÃᵨÄ\´⚪6ó5ᦪ6ᙠ'+ÈÉÖ6ᦟôõö86)`ᙢ6᝞øy=ax2+bx+caஹbஹcnùᦪ6aWO,úû6yüýxḄᦪ.ë´)1.þᭆFḄakÿ0?2.ᦪy=ax2+bx+cḄbcᔲ0?bcᔜ0ᡈᙳ0,ᦪḄᦋᑏᡂ᪵!"#$ᦪ3.ᵫ&⚪12,ᔲ()*+,ᦪᔲᦪ-ᐵ/01ᵫ23,&⚪4567ᦪ89Ḅᳮ;-<=>?@AᦪḄ3,ᱯC*y=ax2+bxa¥0Dy=ax2+caWODy=ax2aWO,E675Fᳮ;*0+,ᦪᔲᦪḄᐵ/0⚗ḄHᦪᔲ0.4.ᦪḄ;᪆-Jᡃ#ᡠ6MḄ1NOPQRSM2,&⚪-E67TᦪJ+ᐗVWXYZὶHᓽ-]Ḅᦟ6_`ab.de⚪1ஹ2gh-i8j1⚪⌕l67mnᦪḄop.q&*᪷sᡃ#ᡠ6N⍝-+ᦪḄuvᩩxy-zᦪḄuv{1᪵Ḅᕖ2,&⚪}⌕A~67Ḅᐶ-h-ᦟ<ᵨ?@hᫀ.ᡃ#Ẇ&⚪ᨬ`ᵫᨬᓫḄᐭ-᪷sᦪḄ-!ᨬᓫḄᦪ12,&⚪+V☢E67ᯠMᑮ⌕ᐜẆy=x2.+V☢

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522.kvoḄᑖᔜᙠ▲ᙠ▲ᑁyxḄᜧ᪵ᓄ!"#⚪ᵫ&'()*+,-./ᦟ1234567=49:0.1£<=Ḅᑖ>6?ஹA▲yXḄᜧCDEF92HkvoḄᑖ>6IஹJ▲yxḄᜧCᜧ.3.LMNOᦪḄQ?ឋSTUMNOᦪḄឋSᨵWXYZ[Q#⚪\&']^&[Ḅ_ᐵabᨵcᙢeὶgᩭi6jklmᵨ.op⚪2ᵫ&'ᙠopqrsᡂᦟ1u.ᢣw.r☢ᡃz(){LMNOᦪḄᭆ}ஹ~lឋS☢ᡃzᩭ?YḄN⚪49HN2ayTX2ᡂLMNx=3y=4.x=1.5yḄ.ᵨ#Ḅ5⚪ᑖ᪆491HyTX2ᡂLMNᵫ&'()Q?#⚪ᨬ-+᪷¡LMNOᦪḄᭆ}Q¢£¤¥{,7=§.92H᪷¡Q¨]ᔲx=1.5yḄ93H⌕«yḄ¬ᐜa⍝°ᕖ94H᪵²]³´kḄᵨᩩ¶/ᵨᱯ´¸ᦔº^»=¼ᓃ=¾2=§.¿a.95HÀ]ᔲÁÂsᡂQ⍝N⚪4ᵫ?ÃY&2ÄᐸÆY&ᙠopqrsᡂ.op⚪3ᵫ&'ᙠopqrsᡂ.9AHÇÈஹÉÈḄ&pÊ!᪗sᡂ[Ìq⁚ÎḄᦟ&ÇÈLMNOᦪḄᭆ}ஹ~ஹឋSÊᵨÏ´¸ᦪº³´LMNOᦪḄÐ᪆.{ÑÒLMNOᦪḄᭆ}✌ᐜÔÕ&&[ḄLMNᐵ¸ᐭ×^&'Ø'Ḅabᵨ&[ḄabᩭÙÚ\&']ÛÜᑭᙢÞßLMNOᦪḄᭆ}ᙠẆá{LMNOᦪḄᭆ},-ᦟ1ᢣw&'âLMNOᦪḄ~ᯠ-᪷¡~äLMNOᦪḄឋS^QឋSYUMNOᦪḄឋS_MÛ\&']5ᡠ&Ḅabᨵ?¸æḄçb.ᙠ&p{rÒ#⚪,-èḼêᵨÏ´¸ᦪº³´LMNOᦪÐ᪆Ḅ#⚪ᵫ6&'ᙠë☢&[ᵨÏ´¸ᦪº³´OᦪÐ᪆ìQ⍝⚪íᵫ&'ᩭîïsᡂ.9JH*+ஹ᡽ñᦟ1#&'òὃ./41.LMNOᦪ2.LMNOᦪḄ~᪵Ḅ

533.ᦪ5;#ὡ0ḄឋffI¸¹2Jஹôõâö1.ᦟᩞp⚪13.10Aø1ஹ2ஹ3ஹ4ஹ5ஹ6.2.⌱ú4Bø1ஹ2ஹ3.ûஹ23üý13.10LMNOᦪÊᐸ~þN491122LMNOᦪ:ஹᦟ᪗ᦟ1.ᐰḄᑁ!"#ᙢ%&ᐰḄ⌕(2.)*+!,-.ᙢᳮ01Ḅ2Ạ421ᢈ,.6,78+1.9:᦮ᳮḄ,7(2.9:ᮣ=>ᵨḄ,7.6ஹᦟ@ஹA4ᶧ1.ᦟ@ᐰḄCD᦮ᳮEFᵨ.2.ᦟAGᦪḄI&4Fᵨ.JKL⁚Ḅ!ᙠOᣴQRSTᑖTᑖḄᑖVWXḄ.YZ▭\,LḄRSᨵ_Ḅὶ".Ja!ᙠᐰQ!bcdᑮᩩᔠ〉Ḅi!%ᐰḄjkᩭ!Y%jkᩭḄm⌕ḄSKnopḄFᵨ.ᙠFᵨḄQ᎛!rrᓫᡈOᓺv-w!Fᵨ-.!xᨵyᔠᡈzQ{o|*ḄḄFᵨ!}~ᑮᨵA.Ja!ᙠQ_⌕ᐰ"#ᓄஹᩩᳮᓄஹᐰ☢ᓄ.ஹᦟ-᪗|☢ᡃ%1ᑖ⁚n!ᜩᡃḄm⌕S%ᐰo.6᦮~ᙠ\3ᑖQ{▅\ḄLp!F9:▅Ḅ!᪵o,nᯠᙢᑮᐰஹ⌕4◤⌕¢£Ḅ¤⚪!¦ᨵ§.Ḅ|⚜!©oᙠ|Tᑖ.ᯠpᵫᦟ«o¬¤Ḅ®WX

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558.,-.%(ᦪ!/Ḅ.,-!y=ax2+bx+c(a,b,c.0ᦪaWO).%(ᦪ/Ḅ.1ᱥ3.9.1ᱥ3y=ax2+bx+cḄ4567⚔9ᙶ᪗ஹ<=>ᔣᔜ.,-!(1)a>01ᱥ3<=ᔣA(2)aVO1ᱥ3<=ᔣB(3)ভ^ᙶ᪗A(-2Éf-).2a4a10.4C1ᱥ3y=ax2+bx+cḄ456D⚔9ᙶ᪗.ᵨ,->FG᪵IᑮḄ!ᵨK>FᐹMNOP(1)ᙠRSTUVWXYa,Z%(⚗\ᦪP1(2)ᙠ]Sᑁᐜ`abcᡂḄ"(⚗\ᦪ"eḄf>Kᡂgᐰf>(3)iᣵk]S.11.,-.lᦪ!/Ḅ.,-!᩵(Ë᪷k/o)I°ᦪ.Ḅ«¬IÍ+F.12.lᦪḄᨵmᱯ9!(1)ᨵpᑖr(2)spᑖrtuv(3)spᑖrwx▲yzx6Dy6{|t}uv.13.ᦦ(1)k>0Ḅpᑖrᑖ~ᙠ"ஹ$▲yxḄᜧ(2)k<0Ḅpᑖrᑖ~ᙠ%ஹ&▲yxḄᜧᜧ.sᑖ⚪ᡈVᓺᔁBi.1.(1)9A(2,-3)ᐵC9459Ḅᙶ᪗.,s459ᐵCx6Ḅ459Ḅᙶ᪗..(2)>MḄ⊤☢s7xḄᦪᐵ\Y..(3)ᦪy=-2xḄḄ.▲"(ᦪy=2x-3ḄḄ.▲.

56(4)*ᱥ=-(>4^)1-ḄᔣÐᱥI⚔9ᙶ᪗..(5)Ñᦪy=L(x<0)Ò°ᦪᐸ6k=.Ḅ«Ôᙠ______▲.ᫀ(1)(-2,3),(-2,-3)(2)s=6x2(3);.B,"•$.´j(4)T»*=-Ö■(-]-b>(5)Ꮨ1,=.■r42.⌱⚪COᦪ7=UḄÙÚᔓᙌÝ[]A.xW1B.x2-3C.xW1x2-3D.x>1.(2)᝞ab2=5,¡-[]A.a7bᡂB.a7b2ᡂC.a7bᡂlD.a7b2ᡂl.ব-àá=-3+ª#ã`^᪗II]A.(0,1)B.(1,0)C.Q,>D.00),(4)=-%ªå+=”Ḅã`᩽I(1A.0B.1C.2D.3.(5)1ᱥ3y=a(x2-x)Ḅ456.[]C.x=1D.x=-1.ᫀ(1)C(2)D(3)B(4)C(5)A.VজᐵC¥⚪(3)¦"(ᦪ7x6v9§ᑖp¨>FᩭὃT&MVḄ`éᙶ᪗A0,ᡠ{⌕ì-*+3=í&174©ª%."(ᦪḄ.ᩩ¬3X6.ᩩ¬3sᩩ¬3Ḅ⊤FPy=0,®¦/¯Ḅv9©.¦spᩩ¬3>°±ᡂḄ>°±Ḅ².

57ঝᐵC¥⚪4§ᑖpᩩ⌶µᩭὃ⇋".¬y¹Aº%.²>°±.$*»¼ஹ᡽¾┐4ÀᚪkÂḄ¥⚪〉`§»¼.&ஹÄÅÆÇ1.ᦟᩞÊ⚪kA±7ஹ11ஹ12ஹ13.2.⌱ËB±1ஹ2ஹ3P.145B5.ÌஹÍÎÏÐᐰÑÒÓᑖÔÕÖ"ᑖ123%ᑖ12×ஹØὃÙᧇÛÜÝÞᦟß$Üᑴáâkãäåᦪ$æᦟᫀçèᦟ᱐*¼7Ê%*"ஹêᦟßë᪗~*ÒÓᦟã91.Zãí4ᐰÑḄî⌕ᦪãð®D>Fᨵ"ᐰ☢ஹ\ñḄò²2.Zãíóôᵨsᦪãð®D>F²õö▭¥⚪.%*óøù91.úûüýþÿᵨᦪᓫḄ▭⚪Ḅ2.ᙠ▭⚪Ḅᑮ▭⚪ᡂᦪ!Ḅ"#⌲%&'()ᑖ᪆⚪ஹ⚪Ḅ-ᡂᵨᦪḄ.3.ᔣ01ᦪ-2ᔠḄ45ᦪḄ67Ḅ8ᐭᦟ;4.0=%>?@ABCDEFᦪBḄᵨ.GHIK;LM7N1.ᔣ01ᦪᩭPQRSᩭTUᵨQRḄVWXᱥZ[67ᦟ;2.ᔣ01\ᱥ]^_`ὶFஹ_`bᓄஹᨵefᙢhᓄḼḄXWXᱥZ[45ᦟ;.jஹᦟ;k7ஹl7Cᶧ71.ᦟk7NnoᵨᡠḄᓫḄ▭⚪.qrs)ktᦪktᦪᦟ;=uk⌕Ḅwqx^oᵨᦪyz{|⚪q}ᦟᜧUr=uk⌕ḄᦟḄx^⌕noᵨᡠᓫḄ▭⚪.

582.ᦟl7Nᙠ▭⚪᝞▭⚪ᡂᦪ⚪.qrᡃ)ᦟḄᜧᑖ^zᦪḄAᩭ01Ḅᡠz▭⚪Ḅ=ᔣᑮl.Hஹᦟ%G=I>?᪗⁚ᡃ)7ḄA☢ᐰ01¡2¢⁚ᡃ)£ᦪ45ஹAB¢=A☢ᐭ¤ᐰ¥z¡2.GjI᦮§¨NG©ª«¬I1®¯°±²³U´µ¶ᨵµ45ᓣ᝞¸¹¡´ὑµ6ᓣ.G1»µ¶Ḅ¼µ½QGᓣI¾³U´]tG´I¿]ḄᦪᐵF2Á©ᦪḄÂ.ÃN1Q=45-6t.G2Âᶍ.Å.N¢^▭⚪ÂÆᵫÈh½tḄÉÊÌOWtW7.5E^=ᩩÎÏÐÑ^ÒÎ.¨N¢u⚪oᵨÓÔᦪ45ÕÃNᦪḄ67.G=ᐵQᦪḄÖ×>?ᦪḄ67x^=ØÙk⌕Ḅᦪ45q}ᙠ¢uᙢAz¢⍝▭⚪¥z>?.I2Û@A»©ÜᑡÞᱥÎḄ±ßAᔣஹàáC⚔7ᙶ᪗.1y=«a-6K+5J<2y=+2k+l.ÃNG1y=x2-6x+5=x-32-4,±ßᔣàá^x=3,⚔7ᙶ᪗G3,-4.2a-2ᔣVIx=2,⚔7ᙶ᪗G2,3.¨N¢u⚪ᵨÓÔ᪵ḄᦪABÕÃN@AB.ᡃ)ᙠ¢=Ñåᦪ45ஹABæ¢çᦪ45ஹAB£ᨵèQᡃ)ᔜØ⚪.3Á©jêᦪy=x2-6x+7ḄÂ᪷ìÂíÃÜᑡ⚪N1îx=-1,1,3´yḄÊ^|åÕ2îy=2´ḄxÊ^|åÕ3îx>3´ïxÊḄðᜧyḄÊñ᪵hᓄÕ4îxḄÊᵫ3ð¥1´ḄyÊð¥|åÕ

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