2022-2023学年贵州省安顺市中考数学专项提升仿真模拟试题（一模二模）含解析

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62022-2023
ḕὃᦪ⚗ᓣ⚪ஹ⌱⌱±²ᜧ⚪ᐳ10¶⚪"¶⚪3ᑖᐳ30ᑖ.ᙠ"¶⚪ᡠ·«Ḅ⌱⚗K¹ᨵ"⚗»ᔠ⚪½⌕^Ḅ¬¾¿À⌱⚗ḄÁÂÃÄᙠÅ⚪ᓱVÇ1.-3ḄȱÇ11A.-3B.3C.--D.—33ூ¿ÀÅᫀ௃Bூᑖ᪆௃᪷ÎÏᦪḄÈÐḄuÑᦪÒ¨«Åᫀ.ூÓo௃᪷ÎÈḄឋÕ¨Ö×3|=3.ᦑ⌱B.²⚪ὃÛÈḄឋÕ◤⌕ÝÞßÏᦪḄÈвàÏᦪḄÈÐḄuÑᦪ.2.áâᑮ2017äåæçèéêQ2720000è¾2720000ᵨëìíᦪî⊤FQ±ÇA.2.72x105B.2.72x106C.2.72xl07D.2.72x10sூ¿ÀÅᫀ௃Bூᑖ᪆௃᪷ÎëìíᦪîḄ⊤F±axionᐸKlW|a|<10,nQ᦮ᦪ.ÀúnḄÈ]⌕ûüýᦪþᡂa
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7ூ௃@A☢CDᑡᨵG.1HIJᑡKᨵL.1HKᨵCMᔠ.ᦑ⌱C4.OᑡP;Ḅ+89A.QRSTUVᚖXḄYZH+[HB.QRSV\ᑖḄYZH+:1HC.QRSVᚖXḄYZH+\^YZHD.QRSTUV\ᑖḄYZH+_Hூ:;<ᫀ௃Dூᑖ᪆௃᪷b[H:1H\^YZH_HḄᑨddᳮf^ᑨdᓽC<.ூ௃AஹQRSV\ᑖUᚖXḄYZH+[Hᦑi⌱⚗Pk┯mnᨵMᔠ⚪p;BஹYᩩZTḄYZH+[Hᦑi⌱⚗Pk┯mnᨵMᔠ⚪psCஹQRSV\ᑖḄYZH+\^YZHᦑi⌱⚗Pk┯mnᨵMᔠ⚪psDஹQRSTUV\ᑖḄYZH+_Hᦑi⌱⚗P;Mᔠ⚪psᦑ⌱D.t⚪ὃv[H:1H\^YZH_HḄᑨddᳮwt⚪Ḅᐵy+z{(|YZHḄᑨddᳮ.5.}~ᳫ12ᕒḄ᝞O⊤8913141516ᦪ1542ᐵ12ᕒḄOᑡPk┯mḄ+89A.ᦪ+14B.᩽+3C.~ᦪ+14.5D.\ᙳᦪ+14.8ூ:;<ᫀ௃Dூ௃ᑖᑭᵨ᩽~ᦪᦪ\ᙳᦪḄkᑖᑖ᪆D<ᫀ.ᵫ%⊤CD14Ḅᨵ5ᦑᦪ+14,ᦑ⌱⚗A:;nᨵᔠ⚪ps᩽+16-13=3,ᦑ⌱⚗B:;nᨵᔠ⚪ps~ᦪ+14.5,ᦑ⌱⚗C:;nᨵᔠ⚪ps\ᙳᦪ+13+14X5+15X4+16X2
+12~14.5,ᦑ⌱⚗D┯mMᔠ⚪p.8

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y<0D.yḄïxḄðᜧñðᜧூ:;<ᫀ௃Cூᑖ᪆௃ᑖòᐭx=T,x=lôQõḄyᓽCDAnᨵ:;C:;᪷bÐᦪḄöᦪÐᦪḄឋøᓽCDBஹD⌱⚗nᨵ:;i⚪D.ூ௃Aஹùy=-2x+l~x=T,ᑣy=3,...ÐᦪḄ%ÒnᨵÓ8-1,2
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10t⚪ὃvÐᦪḄ%Òឋø⚪Ḅᐵy+⌲ᩩᑖ᪆Y.⌱⚗.t⚪þÿẠ⚪ᨵᜧ⚪៉ᦪḄឋஹᦪḄᙶ᪗ᱯᦪᦪḄᐵ!⚪Ḅᐵ".10.᝞%&'1Ḅ()*ABCD+A⌮┐./45஺12ᑮ()*ABCQH%CD45O,ᑣ7%*ABQDḄ☢9!:<ூ(>?ᫀ௃Cூᑖ᪆௃DEAG,AO,᪷G7%*ABIGDI!()*2HNGABINACIBI=45஺JHNDABi=45஺,LHAஹDஹGMᐳOᙠRtACiDiAQᵫSTUᳮJHAGWXJHDOOD,᪷GMY*Ḅ☢9Z[ᓽ].ூ^௃DEAG•/7%*ABiGDi!()*...NCiABi=gx90°=45°=NACB,:%&'1Ḅ()*ABCD+A⌮┐./45஺12ᑮ()*ABIGDI,b.NBiAB=45°,.,.ZDABi=90o-45°=45°,b.ACicDᓽAஹDஹGMᐳO:()*ABCDḄ%&!1,11

117%*ABICID1Ḅ%&!1,ᙠRtACDiAQᵫSTUᳮ2dACI=/17+17=V2.AᑣDG=0-1,VZACiBi=45°,/GDO=90°,.•.ZC|OD=45°=ZDCiO,/.DCi=0D=V2-1-b•SAADO=TXOD-AD=V,22/y_i7%*ABQDḄ☢9!=2efg=(i1,2ᦑ⌱C.ஹ⚪ᜧ⚪ᐳ8⚪!⚪3ᑖᐳ24ᑖ.$ᨵ◤ᑏ()*+,./*ᫀ12ᑏᙠ*⚪ᓱ5678911.ᦪ'iḄmnoḄpqs!________.X-1ூ(>?ᫀ௃u1ூ^௃dv'ᑖwḄᑖxᨵ'0,ᡠ1z,ᓽ#1ᦑH1.12.sin60°Ḅ{|ᦪ!.ூ(>?ᫀ௃-22ூ^௃•.}H60஺=~~Ḅ{|ᦪ!-3,222••.sin60Ḅ{|ᦪ!-(.2ᦑ?ᫀ'i(.213.iᨵḄQᨵஹᳫᔜᳫ◀⁐᜜ᐸQ12

12᥎Hiᳫ1᤯ᒴ᥎Hiᳫᑣ¡᥎HḄᳫ¢!ᳫḄᭆ᳛'.ூ(>?ᫀ௃-4ூ^௃¥⚪ᑖ᪆dᑡ⊤2:121211112111222122212211Ml121112221222122ᐳᨵ16¨©]ª«¬ᦪᐸQ¡᥎3[!ᳫᨵ4¨1.,•?==i■164ὃdᭆ᳛.14ᑖvwd8-2/=ூ(>?ᫀ௃2(2+a)(2-a)ூ^௃8-2a2=2(4-a2)=2(2+a)(2-a).ᦑ?ᫀ!d2(2+a)(2-a).15.²³g¡ᦪy=-x2-2x+3ḄᨵA(-7,y])B(-8,µ2)ᑣ¶____y(ᵨ¹ஹ■ஹ2=º»).ூ(>?ᫀ௃¹ூᑖ᪆௃᪷G²³ᩩ½JHg¡ᦪḄ¾¿ÀzÁÂ)ᔣ᪷GAஹBḄÄᙶ᪗Ḅᜧᓽ13

13]ᑨÆHyly2Ḅᜧᐵbூ^௃•.•g¡ᦪy=-x2-2x+3Ḅ¾¿À!x=-1,ÁÂᔣÇ,.♦.ᙠ¾¿ÀḄÈÉyxḄÊᜧXÊᜧ.:A(-7,y஺B(-8,y)!g¡ᦪy=-x?-2x+3ḄḄË-7>-8,2.*.yi>y.2ᦑு16.ᙊ┵ḄÏ☢ÐÑ!1,É☢9!2ᐔᑣᙊ┵ḄÉ☢ÓÁḄᙊÔY'_.ூ(>?ᫀ௃180°ூ^௃¥⚪ᑖ᪆d•.•ᙊ┵É☢9'2ᐔ,᪷Gᙊ┵É☢9Õw2S=7ni=wxlx[=2it,2d1=2.•••᪷Gᡧ*☢9'2%=ᓃ/2,2dn=180.360...É☢ÓÁḄᙊÔY!180஺.17.᝞Ø*ABCDQAD=ÙF!DAÚ&OiG!CFiZACG=ZAGC,ZGAF=ZF=20°,ᑣAB=.ூ(>?ᫀ௃V6ூ^௃¥⚪ᑖ᪆d᪷GMY*Ḅi᜜Y©5Ûᨵ{ÜḄᑁYḄz]2ZAGC=ZGAF+ZF=40°,᪷G©ῪMY*ḄឋJHNCAG,ᯠ1JHNCAF=120஺᪷GNBAC=/CAF-/BAFJH/BAC=30஺᪷GàYMY*30஺Yᡠ¾ḄàY%©5á%ḄiÐ]2AC=2BC=2AD,ᯠ1ᑭᵨSTUᳮᑡwZ[ᓽ]2.¥⚪᪆dᵫMY*Ḅ᜜Yឋ2ZAGC=ZGAF+ZF=20°+20°=40°,VZACG=ZAGC,ZCAG=180°-ZACG-ZAGC=180°-2x40°=100°,ZCAF=ZCAG+ZGAF=100°+20°=120°,ZBAC=ZCAF-ZBAF=30°,14

14ᙠRtAABCQAC=2BC=2AD=2VI>ᵫSTUᳮAB=y/AB2-BC2=7(2^2)2-(72)2=y/6-ூὃ௃1.Ø*Ḅឋb2.©ῪMY*ḄᑨUឋb3.ñ30YḄàYMY*b4.àYMY*á%ḄQOb5.STUᳮ.18.Çᑡᫀ!ᵨ&{öḄ÷øùᢥiUûüýþXᡂ
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3ᫀঞ◤16᪷…ᢥ
nᫀ◤᪷.ூᫀ௃(6n-2)ூ"#௃
1$%ᨵ4᪷4=l+3xl+
2$%ᨵ10᪷10=1+3x3+
3$%ᨵ16᪷16=1+3x5+ᢥ
n$%Ḅ᪷ᦪ/1+3(2n-l)=6n-2.ᦑᫀ2(6n-2).⚪4⌕ὃ7$Ḅ8ᓄ:;⚪✌ᐜ>?@$ABCᑖEFG8ᓄ/ᢥ᯿IJ8ᓄḄKLᑖ᪆?ᑮᔜCᑖḄ8ᓄPQRᑭᵨU#.Vஹ#⚪(Xᜧ⚪ᐳ10[⚪ᐳ66ᑖ.\ᙠ⚪ᓱᢣ`abᑁdஹ#e>ᑏ@ᦻhijஹkjLlᡈnopq)19.sot—ᡃ—(2017—x)°+(+zூᫀ௃-1ூ"#௃{⚪ᑖ᪆tᢥ|o}~soᓽ.{⚪#᪆t15

15=-2-1+2=-120.ᐜᓄUt+2,,ᐸ%3xᒹᒹ+2=0.x+1x+x+1x+1x—2ூᫀ௃2ூ"#௃{⚪ᑖ᪆tᐜᓄ{⚪#᪆t='—2x*জ)[+1)=/+x,x+1x—22/+x-2=0.ᡠ=2.21.஻ஹ6/ᐗl/-2r-1=0Ḅ᪷Ua?-஻+b+3abḄ.ூᫀ௃0ூᑖ᪆௃{⚪ᑖ᪆tᐜᵫ᪷ᦪḄᐵ¢@a+b=2,ab=-l,£¤-8$ᡂ¦(a+2)§abḄ$.{⚪#᪆t•Zஹ஺/ᐗlf-2x-1=0Ḅ᪷/.a+b=2,ab=-\+©*-2a-1=0ᓽ4=2஽+1+ᡠa2-a+b+3ab=2a+}-a+b+3ab=஺+6+1+3஺6=2+1-3=0.ூ"#௃\ᙠ¬ᐭ"#22.᝞ᙠ¯☢Q±ᙶ᪗xOy%´ᦪy=ax+bḄµx¶·¸¹ºA(2,0),y¶k¸¹ºC,»¼½´ᦪy=ᙠµ▲ᑁḄµ¸¹ºB(m,n),¿ÀOB.ÁSAAOB=6,SABOC=2.x(1)U´ᦪḄ⊤Ã+(2)U»¼½´ᦪḄ⊤Ã.16

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,δᦪ#᪆2Ïmx+n,-2m+77=0ÐA(-2,0),C(0,4)Ñᐭ¢Ò77=4m=2#¢஻4♦´ᦪ#᪆2y=2x+4+(2)VSABOC=2,yx4xm=2,#¢m=l,Bºᙶ᪗2Ä1,6
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E,F,G,¿DE,DG.(1)\ᑨÝÞß$E8G஺Ḅ$âãijᳮᵫ+(2)ÁN/BC=60஺ZC=45°,OE=2èU8cḄê.ூᫀ௃(1)Þß$E8GD2ì$(2)3+373ூ"#௃{⚪ᑖ᪆t(1)ᐜkjÞß$BEOG2¯íÞß$᪷Åîïß·ðḄ¯íÞß$¢@Þß$E8GZ)2ì$.(2)dEMJ_BC¹M,ᐜU¢BM§CMḄ᪷ÅBC=BM+CMᓽ.{⚪#᪆t(1)Þß$E8G஺2ì$+ᳮᵫtᚖQ¯ᑖ8D,.EB=ED,GB=GD,.ZEBD=ZEDB,:NEBD=NDBC,NEDF=NGBF,.DE//BG,ôᳮ8E஻Z)G,Þß$BEDG2¯íÞß$5L'DE=BE,Þß$E2GD2ì$+(2)᝞L஺dDW_L8c¹ᵫ(1)ZDGC=ZABC=60°,ZDBM=-ZABC=30°,218

18DE=DG=2*,ᙠRt^DMG%¢DM=3,ᙠRt^DMB%¢BM=3è+/஺=45஺.CM=DM=3,.•.BC=3+3ḕ.24.ùúûüᖪþᡂXÿᓟ
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xᐗ!"#ᦪᐵ&'ᑖᦪ)᝞+⊤-x/ᐗ/ᓟ
506070y/ᓟ
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19(3)W=-2x2+280x-8000=-2(x-70)2+1800,ᐸJ404x480V-2<0,88V81KiḄᜧNᜧ70

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262022-2023
ḕὃᦪ⚗ᓣ⚪ஹ⌱⌱ᜧ⚪ᐳ10⚪!⚪3ᑖᐳ30ᑖ஺!⚪Y(Ḅ[\⌱⚗]ᨵ\^_`Ḅ1.ᑡE½BᨵJKḄÎÏA.0ÐBᨵJᦪÑBᨵÒᦪB.VᨬÈḄᦪ0C.VÔ%ÕÖḄᦪ×ᨵ0¿1D.Ô%ÕÖḄᦪ×ᨵ0¿12.ᑡÙÚJKḄÎÏA.B.Îx+1Ï2=^+1C.Î3/n2Ï3=9/n6D.2ai,a4=2a13.᝞ÞßàáâḄ<ãÞᑣäàáâḄᐰ☢.Ô%ÎÏ4.æçBᨵ>ÔḄᦪhèḄ_éᦪ380,È%_éᦪḄᦪḄᙳᦪ370,ᜧ%_éᦪḄᦪḄᙳᦪ396,cëæᦪhḄᙳᦪ3"ᑣì=ÎÏA.82B.83C.80W"W82D.82W^W835.᝞Þᡠßîïᨵ<ðñòóA.BஹCᔜóᑖ#ñᨵõ30ö15ö10öë<
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27aA.1B.2C.3D.47.\ᐹ^ᜩ`abᵬd\ᐹef24ᡈhd\ᐹef12iᵬd\ᐹefjhd\ᐹef2`kᡂm᦮Ḅ\ᐹo᪵q᣸abs`ᙠ60ᜩᑁkv;wxḄ\ᐹabᵬd\ᐹefxᜩhd\ᐹefyᜩᑣᨵ()[x+y=60+y=60fx+y=60A\B.\C.\D..124x=12y[12x=24[2x24x=12yx+y=60*24x=2xl2y8.᝞=2ᑡ=>ᙳ4mᐰSḄᢥ᯿ḄᡠkᡂḄজ=>Wᐳᨵ3ঝ=>Wᐳᨵ8ঞ=>Wᐳᨵ15…ᢥ᣸ᑡ29=>WḄᦪ4()জঝ.ঞA.80B.89C.99D.1099.᝞=ᦪy=-x2+bx+cḄᑖ=jxஹyḄTᑖA(l,0),B(0,3),4x=jl.ᙠ2ᑡ¢£W┯¥Ḅ4()A.⚔ᙶ᪗(-1,4)B.ᦪḄ©᪆«j-3C.¬x<0®y¯xḄ°ᜧ²°ᜧD.³ᱥBjxḄµT4(-3,0)AEAB10.᝞=,Z1=Z2,ᑣU¢£?জ·ABEs/XACFEঝ^ABCS/XAEF~AF~7C28

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32(1)᝞21eÖ8BABCDᑖᒘᡂḄ+d<Ö8Be9dÖ8BÖ8BḄÝ(2)᝞22,ÞÚaABCeZACB=90°,AC=4,BC=3,<¬ß[AABCà“z2B”ãḄäå&CCD_LABD,ᑣCDAABCᑖᒘᡂ2dÒzæḄ<7B.ÞÚACDs^ABC,ᑣ4ACDAABCḄÝ_______((3)[ᨵdèBABCDz2Bᐸe³AD=a,êAB=b(a>b).piIᑡAஹBk⚪eÊ⌱ᩩH.A&জ᝞23-1,©èBABCDíᔣᑖᒘᡂkdᐰðèBèBÑᑣa=(ᵨ:bḄòó⊤4)(ঝ᝞23-2©èBABCDíᔣᑖᒘᡂndᐰðèBèBÑᑣa=(ᵨ:n,bḄòó⊤4)(B&জ᝞24-1,©èBABCDᐜíᔣᑖᒘ_2dᐰðèB÷ᒕùḄᑖúᔣᑖᒘᡂ3dᐰðèBᑖᒘᑮḄèBèBÑᑣ2=(ᵨ:bḄòó⊤4)(ঝ᝞24-2,©èBABCDᐜíᔣᑖᒘ_mdᐰðèB÷ᒕùḄᑖúᔣᑖᒘᡂndᐰðèBᑖᒘᑮḄèBèBÑᑣ2=(ᵨ:m,n,bḄòó⊤4).25.ÞÚûᱥy=ax?+ax+b(aWO)7y=2x+mᨵdýᐳM(1,0),a

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342022-2023
ḕὃᦪ⚗ᓣ⚪ஹ⌱⌱ᜧ⚪ᐳ10⚪!⚪3ᑖᐳ30ᑖ஺!⚪Y(Ḅ[\⌱⚗,]ᨵ\^_`Ḅ1.XᑡZ[Nᨵ\]Ḅ^A.0`Nᨵ^\ᦪ.aNᨵ^bᦪB.TᨬeḄᦪ^0C.Tg6hiḄᦪjᨵ01D.Dkg6hiḄᦪjᨵ01ூ\]mᫀ௃Cூpq௃q஺ᓽNᨵ^\ᦪ.aNᨵ^bᦪ.ᦑA\]'TᨬeḄᦪ^0,ᦑB\]'Tg6uiḄᦪ^vbᦪ.ᦑC┯x'Dkg6uiḄᦪ^01,ᦑD\].ᦑ⌱C.2.Xᑡz{\]Ḅ^A.|%”2=|B.x+12=x?+lC.3.3=96D.2a3«a4=2a7ூ\]mᫀ௃Dூpq௃R⚪q᪆Aஹ:Nᨵᔠ⚪'Bஹ:=/+2x+l,Nᨵᔠ⚪'Cஹ:=276,Nᨵᔠ⚪'Dஹ:=2|.ᔠ⚪.ᦑ⌱D3.᝞^Ḅ.ᑣḄᐰ☢&g6D.8435

35ூ\]mᫀ௃Bூpq௃R⚪q᪆^.ᵫᳮ¢3£=3,3x2=6,ᐰ☢&6x4x1x2+5x7x2+6x7=24+70+42=136.2ᦑḄᐰ☢&g6136.ᦑ⌱B.4.¥¦Nᨵ§gḄᦪ¨.©ḄªHᦪ80,e6ªHᦪḄᦪḄDᙳᦪ70,ᜧ6ªHᦪḄᦪḄDᙳᦪ96,®¥ᦪ¨ḄDᙳᦪ¯.ᑣ()A.82B.83C.80W^W82D.82W1<83ூ\]mᫀ௃Dூpq௃ᜧ6ªHᦪe6ªHᦪḄᦪᦪ§O.µ¶·^“..¹®¥ᦪᨵᏔᦪ-.ᑣªHᦪNᨵ^®¥ᦪªḄᦪ.ᑣ®¥ᦪᨵ2஻?.ᑣDᙳᦪ^:70m+96m---------=83'2m¹®¥ᦪ¨Ḅᦪ^᜻ᦪ-.ᑣ®¥ᦪᨵ2|+1.ᑣDᙳᦪ^70|+96஻?+800C3-------------=OJ-------,2|+12¾+13¿|21,À¿0V---W12|+133A83-------283-1=82Â83-------<83.2m+12m+1ᦑ82WFV83.36

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ḄCCDLABD,ᑣCD4ABCᑖᒘᡂ2Ḅ!"!#.%&'ACDsZkABC,ᑣ4ACDAABCḄ+,-.301ᨵ34#ABCD5#ᐸ78AD=a,;AB=b.a>b0.?@AᑡAஹBD⚪7F⌱3ᩩI.Aজ᝞53-1,N4#ABCDOᔣᑖᒘᡂDᐰR4#ST4#Uᑣa=.ᵨWbḄXY⊤[0-ঝ᝞53-2N4#ABCDOᔣᑖᒘᡂnᐰR4#ST4#Uᑣa=.ᵨWn,bḄXY⊤[0-Bজ᝞54-1,N4#ABCDᐜOᔣᑖᒘ_2ᐰR4#`ᒕbḄcᑖdᔣᑖᒘᡂ3ᐰR4#SᑖᒘeᑮḄ4#T4#Uᑣ@=.ᵨWbḄXY⊤[0-ঝ᝞54-2,N4#ABCDᐜOᔣᑖᒘ_mᐰR4#`ᒕbḄcᑖdᔣᑖᒘᡂnᐰR4#SᑖᒘeᑮḄ4#T4#Uᑣi.ᵨWtn,n,bḄXY⊤[0.ூlmIᫀ௃.l0g;.20g-.30Aஹজ8-ঝt;Bஹজᡈঝᡈ?b.ூuv௃w⚪ᑖ᪆.10᪷z+Ḅ{|}vᓽ-.20ᵫ{ᳮ}e/3=5,᪷z+ACR——}eIᫀ-.304জᵫ4#NBEFs4#FECD,ᑡ_+X᦮ᳮe-ঝᵫAB4#UᐰRḄeᐸ8,6'.ᑡ_+X᦮ᳮᓽ-8.জᑖE04#DFA/NnḄ8஺4#OEMNḄ8D᪷z#Ḅឋᑡ+X}v-ঝᵫ⚪&Oᔣ2ᙽ4#ᐰRdᔣ3ᙽ4#ᐰRᡠ¢஺ᯠ¤ᑖᨴ04#஺MNnḄ8஺4#DFMNḄ8D᪷z#Ḅឋᑡ+X}v.v.10-HADḄ7.*.AH=—AD,2,/l¨#AEOHsl¨#ABCD,+,©AD2ᦑIᫀ,«-53

53(2)ᙠRt^ABC7AC=4,BC=3,᪷z{ᳮeAB=5,.♦.'ACDAABCḄ+,■=&AB5ᦑIᫀ,°(3)Aஹজ•4#ABEFs4#FECD,AAFAB=ABAD,ᓽgab=ba,2**.a=J^b-ᦑIᫀ,«ঝ4#UᐰRḄᑣᐸ8,bLa,nᑣb—a=ab,na=D)-ᦑIᫀ,«Bஹজ᝞52,ᵫজঝ&Oᔣ2ᙽ4#ᐰRdᔣ3ᙽ4#ᐰR.•.DN=jb,IஹFM4#DFMNḄ8••4#FMNDs4#ABCD,AFDDN=ADAB,ᓽFD-yb=ab,veFD=-a,0JAF=a-332•,.AG=-^=3-a=^-a,2—3•4#GABHs4#ABCD,/.AGAB=ABAD54

54BP-^-ab=baeaT^b-IIஹDF4#DFMNḄ8••4#DFMNs4#ABCD,AFDDN=ABADᓽFD—b=ba3veFD=—,3a,222.AF=a-“Q3a-bk3a3aAG=^=3a2-b2,26a•4#GABHs4#ABCD,AAGAB=ABADQ2k2ᓽ3a¶b_b=ba,6aea=Y|^b-ᦑIᫀ,·¸-ঝ᝞53,ᵫজঝ&Oᔣmᙽ4#ᐰRdᔣnᙽ4#ᐰR,.•.DN=—b,nIஹFM4#DFMNḄ8,4#FMNDs4#ABCD,-.FDDN=ADAB,ᓽFD—b=ab,veFD=—a,n/.AF=a--a,n55

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5652¿À⚪ὃÂ÷ÄÅÆ4#Ḅឋ#ḄឋÇᑖÈÉÊḄᦪÌÍÎÏ⚪ÐÑÒÓ+#ḄឋlmÔᵨᑖÈÉÊÍvIÀ⚪ḄᐵÖ.25.%&×ᱥÙy=ax?+ax+b(a*0)Ùy=2x+mᨵ3ßᐳM(1,0),Saீb.(1)}baḄᐵâX×ᱥÙḄ⚔Dᙶ᪗(ᵨaḄæᦪX⊤[)-(2)Ù×ᱥÙḄç᜜3éê,N,}'DMNḄ☢ìaḄᐵâX-(3)a=-1Ùy=-2x×ᱥÙᙠí¶î▲éG,GஹHᐵTðñ1ÙòGHóyôᔣõöÆtᓫø(t>0),NÙòGH×ᱥÙᨵDùᨵúḄßᐳw}tḄûüþ.τ927327ூlmIᫀ௃(1)b=-2a,⚔DḄᙶ᪗,(-},--a)(2)-----------a(3)2

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58AE(-y,-3),24VM(1,0),N(--2,--6),aaADMNḄ☢R,S,i29aஹ27327..S=SADEN+SADEM=T*I(-2)-11*|---(-3)|=------------a,2a44a8(3)Wa=-l_&ᱥḄ᪆,y=-x2-x+2=-(x+i)2+9-,24y=-—x+2ᵫ,y=-2x-x2-x+2=-2x,:xi=2,X2=-LAG(-1,2),•GஹHᐵ;&AH(1,-2),2GHḄ᪆,y=-2x+t,-x2-x+2=-2x+t,x2-x-2+t=0,=l-4(t-2)=0,9t==,4WHᙠᱥd_&ᙶ᪗,(1,0),(1,0)ᐭy=-2x+t,t=2>9,WaGH!ᱥᨵf\gᨵhḄ]ᐳ&tḄi5k2

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