山东省枣庄市2021-2022学年中考数学模拟试卷（一模）含解析版

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22ூᫀ௃CூG᪆௃ூG௃:ᦪḄ8᝞Vrᦪ⌕e¡ᡃZmᐸ(rᦪrᦪḄ:ᦪᱯ¥ᙢ0Ḅ:ᦪ§80.¨©ªḄ:ᦪ8—ᦑ⌱C.2.ᑡ¯°±²Ḅ8A.2a-a=lB.a2+a2=2a4C.a2,a3=a5D.a-b
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71111A.X——B.x=—C.XW—;D."2222ூᫀ௃AூG᪆௃ூᑖ᪆௃ᑖIᨵUᑖÇ2x-lË.ூG௃᪷Í⚪UÎ2x-l=0,GÎx=—.2ᦑᫀ⌱A.ூÓ௃Ô⚪ὃÕḄ6Ö8ᑖIᨵUḄᩩØG⚪ḄᐵÙ8ÚÛḄÜÝᑖIᨵUḄᩩØ.4.)Jx—2y+9|x—J—3|å:ᦪᑣx+yḄ,()A.3B.9C.12D.27ூᫀ௃DூG᪆௃ூᑖ᪆௃᪷Í,éêë᪷IḄìíឋÎdêᐗº'ð"GñᐭᓽôÎd.ூG௃Gylx-2y+9+\x-y-3\=0,x—2y+9=0•J-öx-y-3=0x=15GÎ<U=12.'.x+y=27,ᦑ⌱D.ூÓ௃᪗⚪ë⌕ὃÕêë᪷Ié,ḄìíឋGêᐗº'ð"ñᦪIḄ,fᳮG⚪Uùᔠ$ᵨûü6Ö8G⚪ᐵÙ.5.)ᐵDxḄᐗêëº'/_2ÿ+஻?=0ᨵᦪ᪷ᑣᦪḄ()A.m<\B.m>-\C.m>1D.m<—\ூᫀ௃Cூ!᪆௃ூᑖ᪆௃᪷$ᑨ&'Ḅ()*ᑮ4=(-2)2-4m<0,ᯠ3!ᐵ5mḄ67'ᓽ9.ூ:!௃!;᪷$⚪(*==(-2)2-4m<0,!*m>l.?8⚓/C31⚓

8ᦑ⌱;c.ூGH௃I⚪ὃKL᪷Ḅᑨ&';MᐗOPQRax2+bx+c=0(a#))Ḅ᪷S=bJ4acᨵ᝞UᐵV;W>0XQRᨵYZ6[7Ḅᦪ᪷\W==()XQRᨵYZ[7Ḅᦪ᪷\W=<()XQR]ᦪ᪷.6.67'1-XWOḄ!ᙠᦪ_`⊤bcdḄ()A.14-i'B.;ஹ$~~±->C.-4:~4>D.-2-101-1012-2-101—I-----1~~i->-1012ூᫀ௃Dூ!᪆௃ூ:!௃i⚪ᑖ᪆;67'1-XM0,!*;x>l,⊤bᙠᦪ_`᝞jᡠb;ߟτ-----1~g~~-1012ᦑ⌱DூὃG௃ᙠᦪ_`⊤b67'Ḅ!l.7.mnUᑡpZqᦪ;জs-xঝuv\ঞx!\টy=x2.x<0Xy{xḄ|ᜧ~Ḅqxᦪᨵ()A.1ZB.2ZC.3ZD.4Zூᫀ௃Cூ!᪆௃ூ:!௃!;WxvOXজ-x,@^=-,@y^x2,»{xḄ|ᜧ~;Xঝs᜛{XḄ|ᜧ~|ᜧ.ᦑ⌱C.8.qᦪ+Ḅj᝞jᡠbᑣy<0XxḄ()C.x>-\D.x<-1?9⚓/C31⚓

9ூᫀ௃Dூ!᪆௃ூ:!௃i⚪ᑖ᪆;Wy<0Xjᙠx_UQ•.•Sx5(-1,0),...y<0XxḄxV-1,ᦑ⌱DὃG;qᦪjSVᦪḄᐵV.9.OPqᦪs*+bx+c(aW0)Ḅᑖj᝞jᡠbjG(-1,0),_x=2,Uᑡ;(1)4a+b=0(2)9a+c>-3A(3)la-36+2c>0(4)A(-3,ᑓ)ஹG8(-/,»2)ஹGC(7,)ᙠqᦪj`ᑣ<ஹ3ீ/\(5)QRa(x+1)(x-5)=-3ḄY᪷XIX2)X10,A9a+c>-3cfᦑ(2)cd\•+,ᱥSx_ḄMZG(+1,0)a-b+c=0)+"="4஻a+4a+c=0,BPc=-5a.¥ᐭ9*7a-3b+2c=7a+12a-10a=9a,•+,qᦪḄj§¨©ᔣU?10⚓/C31⚓

10+.a<0,\.7a-36+2c<0,ᦑ¯3°6cd\:Wx<2Xy{x|ᜧ~|ᜧWx>2Xy{x|ᜧ~...G4¯-3,´°ஹG8¯-\,/°ஹGC¯7,µ°ᙠqᦪj`ᑣ´=ᑣx\<-\0Xᱥᔣ`¨©\W஺<0XᱥᔣU¨©\⚗Vᦪ6OP⚗VᦪaᐳÉÆÇÊḄᙢÌW஺SbÉÎX¯ᓽa6>0°,_ᙠy_Ï\WaS6ÐÎX¯ᓽÑ<0°,_ᙠy_Ò\Óᦪ⚗cÆÇᱥSy_G.ᱥSy_5¯0,c°\ᱥSx_GZᦪᵫ=ÆÇ==62-4ac>0XᱥSx_ᨵ2ZG\==஻-4ac=0XᱥSx_ᨵ1ZG\==62-4ac<0XᱥSx_ᨵG.10.᝞jAOACABADÕ7Ὺ×Ø×ÙZACO=ZADB=90°,ÝÞßqᦪy='ᙠx▲ḄjGB,ᑣAOACSABADḄ☢âã䯰A.36B.12C.6D.3ூᫀ௃Dூ!᪆௃ூᑖ᪆௃åAO/C=Þ1஺Ḅ×æçᑖ&aஹb,7Ὺ×Ø×ÙḄឋvj9*nG8Ḅᙶ᪗᪷$Ø×ÙḄ☢âè'ÝÞßqᦪVᦪkḄéê()µvGBḄᙶ᪗ᓽ9*n.ூ:!௃!;åAB/஺Ḅ×æçᑖ&aஹh,?11⚓/C31⚓

11ᑣG8Ḅᙶ᪗(a+6,a-b).•.•G8ᙠÝÞßqᦪy=&Ḅ▲j`x(a+b)x(a-b)=a2-b2=6.:•SdOAC-a1-b2=^-(a2-b2)=7-x6=3.2222ᦑ⌱D.ூGH௃I⚪P⌕ὃKLÝÞßqᦪVᦪ4Ḅéê()ஹ7ῪØ×ÙḄឋµv☢âè'!⚪ḄᐵìínḄ.ᜐᳮ⚪ð᪗⚪X⌕ån7Ὺ×Ø×ÙḄ×æñ⊤bn☢âòᵨᐸ⊤bnÝÞßqᦪ`GḄᙶ᪗ᐵì.11.ô¸Bõ©Ì5Aö÷Gᓅùú45஺QᔣᐸᑮAö÷GcᓅûᔣḄüýBMḄç10þkm,M⁂
B᝞ᡠḄBCᔣ4J7kmᑮCᜐCᜐAᓅ75஺ᔣᑣ
A!"Ḅ#$ACḄ%&()km./M3ᨴA.8+B.90C.66D.7^/3ூ-ᫀ௃Aூ0᪆௃ூ20௃03VZMAB=45°,BM=10V2>AB=YJBM2+MA2=7(10V2)2+(10V2)2=20km,4B5BD_LAC,6ACḄ789D,ᙠRtAADB;ZBAD=ZMAC-ZMAB=75°-45°=30°,,BDJ3tanZBAD=-----=-----,AD3AD=6BD,BD2+AD2=AB2,ᓽBD2+(ḕBD)2=202,/.BD=10,.•.AD=1()5ᙠRtaBCD;BD2+CD2=BC2,BC=4+ACD=2>?12⚓/B31⚓

12AC=AD-CD=100-2>=8L1”-3
A!"Ḅ#$ACḄ%&86km.ᦑ⌱A./ூὃ௃0UVWVXḄYᵨ-ᔣVᡂ\.12.᝞ᙠ]X4BC'஺;PஹRᑖcd3cg஺ChḄEஹiᑖcdjigkiḄ;,mPᙠ8ch8ᔣCopqRrpsᑡuvwxḄdyzA.9{EFḄ%⌲%B.9{EᔆḄ%⌲C.9{EFḄ%UrD.9{EFḄ%iḄᙢᨵᐵூ-ᫀ௃Cூ0᪆௃ூ20௃03M?,᪷ᳮNA=J/D2+DR2Ḅ%r,᪷WVXḄ;9ᳮEF/AR,ᓽ9{EFḄ%Ur2ᦑ⌱C.ூ௃ὃ31ஹ]Xឋ2ஹᳮ3ஹWVXḄ;913.᝞AB஺0ᑗA,B0஺06C,DdAChNCDA=27°,ᑣNBḄᜧdyz?13⚓/B31⚓

13A.27°B.34°C.36°D.54°ூ-ᫀ௃Cூ0᪆௃ூᑖ᪆௃ᵫᑗ9Ḅឋ¢NOAB=90஺ᵫᙊᕜVᳮ¢NBOA=54஺᪷UVWVX¥┦V§¨¢/B=36஺.ூ20௃03+++AB஺OᑗA,A0A1BA.+++ZOAB=90°.VZCDA=27°,'ZBOA=54°.AZB=90o-54o=36o.ᦑ⌱C.ὃ3ᑗ9Ḅឋ.314.᝞ᙠ2x2wX©ª;«ª&⚔ḄZ8CḄ☢®¯,°Ijsin/C/B=()2A.1B.!C.2255ூ-ᫀ௃Bூ0᪆௃ூ20௃4C5CD_LAB,᪷ᳮ3AC=AB=71222=V5+1c,1c,1,,3SAABC=4-—x2xl-—X2X]--xlxl=—,2222?14⚓/B31⚓

14τ313ᓽµCD«AB=-,ᡠ«5x.x/5CD=-,03CD=^^-5eCD3ᑣsin/CAB=——=-AC5ᦑ⌱B.15.᝞¶¢ᙠ஺ABCD;AE_LBCE,«B&·¸¹V¯NABC,ºABAE»┐¸¹ᑮABAE,DA.½NADC=60஺AD=5,DC=4ᑣDAḄᜧ&yzA.1B.V6C.V21D.2V3ூ-ᫀ௃Cூ0᪆௃ூ20௃¾⚪0᪆3445/À:ÂÃX48co&ÄÂÃX,AB=CD=4,/ABC=NADC=60°,BE=LAB=2,AE=AF=^AB=2M22:·¸¹V¯Å48C,ºÆ8NE»┐¸¹ᑮ+.A'Bᙠ9{BChÇA'B=AB=4,+.A'E=A'B-BE=4-2=2,?15⚓/B31⚓

15:AF=A-E=2,+.DF=DA-AF=5-2=3,ᙠRtAA'FD;ᵫᳮAD=JAF+DF?=J(2+3?=0T.ᦑ⌱C.16.᝞ËÌÍÎ╔ÐÑᢗ;᝞ᡠḄwXᩈÔÕÖP(Î╔×ᙠᨩÙÚᑖḄᭆ᳛)&()ூ-ᫀ௃Cூ0᪆௃ூ20௃ூᑖ᪆௃ᐜÞᜧwXgᨩÙÚᑖḄ☢®ᑖc&36g4,ßᵨ☢®àÞᭆ᳛.ூ20௃áwXḄÃ%&1,ᑣwXḄ☢®&6x6=36,1141ᨩÙÚᑖ☢®&x4xl+—x2x2=4,ᡠ«P×ᙠWVXᑁḄᭆ᳛d=.22369ᦑ⌱C.ூ௃ä⚪ὃ᪶¢æ3çèᭆ᳛.0-ä⚪Ḅᐵédᳮ0çèᭆ᳛Ḅᭆêᓽ3ᭆ᳛=ëḄ☢®B☢®!à.ᑖcÞᐵX☢®ßÞà.ஹ⚪17.½a+b=3,ab=2,ᑣ(a+1)(b+1)=____.ூ-ᫀ௃6ூ0᪆௃ூ20௃ä⚪0᪆3Va+b=3,ab=2,(a+1)(b+l)=ab+a+b+L/.(a+1)(b+1)=2+3+l=6,ᦑ-ᫀ&6.x+2y=118.ò¢óôõ',°x-yḄö&_____.2x+y=3ூ-ᫀ௃2ூ0᪆௃?16⚓/B31⚓

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17ூ᪆௃ூ௃⚪ᑖ᪆:FABCD=q,F☢p124,.BC=CD=23ZB=ZC=90°,,:FEFGH=q,F.NEFG=90°,VZEFB+ZDFC=90°,ZBEF+ZEFB=90",EFBFAZBEF=ZDFC,VZEBF=ZC=90°,.,.BEF^ACFD,——=——,DFDCBF=᝞CF=^/^,DF=^/1,.♦.EF=^^,q,FEFGHḄᕜz12228221.᝞'48Ḅᙶ᪗ᑖv1(2,0),(0,1),wᑣq+bḄ1_ூ᪆௃ூᑖ᪆௃ᵫ'^ᑮBḄ4ᙶ᪗=᝞KᓄḄAḄ4ᙶ᪗Kᓄᓽ^ᑮbḄ;AḄ0ᙶ᪗=᝞KᓄḄBḄ0ᙶ᪗Kᓄᓽ^ᑮaḄᓽ^ᑮᡠY.ூ௃ᵫ⚪:a=0+(3-2)=1b=0+(2-1)=1:.a+b=2.ᦑRᫀ12.ூ>௃⚪ὃBᙶ᪗J'FḄKᓄ—⚪ḄᐵN=^ᑮᔜḄ.22.1,2,3,4&I;hOḄᦪᐸ15Ḅᭆ᳛=.ூRᫀ௃-318⚓/}31⚓

18ூ᪆௃ூ௃⚪᪆ᑡ⊤^:12341121314221232433132344414243•••ᐳᨵ12S¥¦Ḅ§¨15Ḅᨵ4S,41:.P15ஹ⚪/X+82.x—423.©ª:(-------------)-----------x~-4x—2x~—4x+4x—2ூRᫀ௃6³^x+2ூ᪆௃ூ௃⚪ᑖ᪆✌ᐜ·¸¹☢Ḅᑖº»¼aᑖᯠ3ᔜᑖºḄᑖ¾ᑖ¿»¼Àºᑖ◀ÂᦋᡂÄ»¼Åᑖ©ª.ƺ6x+8-2(x+2)(x-2)-⚪᪆:(x+2)(x-2)x—4__(x_4)(x_2)(x+2)(x-2)x-4_x-2x+224.©ª1|-Ç+(-2016)0.ூRᫀ௃0ூ᪆௃ூ௃⚪ᑖ᪆᪷ḄÈÉ,᪷ஹÊËḄឋÌ!Y.19⚓/}31⚓

19⚪᪆Í-11-y/s+(-2016)=1-2+1=0.25.᝞¨Îᵨ2ÐAÑÒ1ÐBÑÒÓÔ¨Õ10ᔴ×Îᵨ1ÐAÑÒ2ÐBÑÒÓÔ¨Õ11ᔴÕg=ØÙÚজY5ÐAÑÒBÑÒØÙVᔜÓÔ¨ÜÝᔴÞঝEᨵ31ᔴÔ¨◤I©ᑜOVÎᵨAÑÒBÑÒáâ5ÐÒgាäÓØåæ©IᨵçèSÎÒÞঞwAÑÒ5ÐÎê200ᐗBÑÒ5ÐÎê300ᐗìçSÎÒᨬᨬḄ}ᐳÎêÜÝîÞூRᫀ௃11ÐAÑÒØÙ13ᔴ1ÐBÑÒØÙ14ᔴ×2ᐳïS×3ᨬ1AÑÒ9ÐBÑÒ1ÐÎÒðᵨ210ᐗ.ூ᪆௃ூ௃⚪ᑖ᪆1᪷“ᵨ2ÐAÑÒ1ÐBÑÒÙØÕᱥÕ10ᔴ”“ᵨ1ÐAÑÒ2ÐBÑÒÙØÕᱥÕIIᔴ”ᑖv^I¥º,ôõᡂ,ôõYIᓽ×2ᵫ⚪ᳮI3a+4431,ᐗ,ôYIᐸ᦮ᦪ^ᑮïSÎÒ×3᪷2&ᡠYᑭᵨ4ÑÒ5Ð◤Îê200ᐗ/8ÑÒ5Ð◤Îê300ᐗ/ᑖvYIÎÒðᵨᓽ.⚪᪆1æ4ÑÒ1Ðxᔴ8ÑÒ1Ðyᔴᵫ⚪^2x+y=10x=3ù^+2y—11y=4ᡠú1Ð4ÑÒØÙ13ᔴ1Ð5ÑÒØÙ14ᔴ.23a+46=31ᔴ31-4AQ=3Àa,bû¦᦮ᦪa=9a=5a=\♦ü♦61rᐳïSb=l6=46=7(3)ᙠ(2)Ḅᩩÿ
ஹ200+300x7=2300ᐗஹ200x5+300x4=2200ᐗஹ200x9+300=2100ᐗ20⚓/31⚓

209A1Bᨬᐳᵨ2100ᐗ.26.NBC!4ᢥ⌮%┐'ᔣ)*6+,-ᔜ/0123ᩭḄ஻78ᓽ᝞;জᡃ>?@1ᣚB2CD?F.(1)᝞;জI/8CK1ᣚC60஺6F8,C,ᑣOPᔢ
Sc=_____;TUBCVTUMB᜛CᡠᜳḄ┦[2+\(2)᝞;ঝ48C^,NB4c=30஺,4c8=90஺,IZBCK1ᣚCDb8/c஺,-!8ஹCஹ஺ᙠefgUhij/k2lkm6n஻Ḅo\(3)᝞;ঞZUBC^AB=AC,ZBAC=36°,BC=l,I/BCK1ᣚCD஻F84877,-!BஹCஹ᜛ᙠefgUhij/kt89஺2uvj/km஺n஻Ḅo.ூxᫀ௃(1)3\60(2)60°,2(3)72°,2ூ|᪆௃/4f\2ூᑖ᪆௃(1)ᐜNBCSZ\48)஺8SAMOC=()=3NB=NBlZBMB'=NB4B'=60°ᓽ.(2)ᵫj/kN8᜛஺lk8NA4c=90஺ᯠᵫᓽm8஺Ḅ+ᦪᵫ30஺[ḄT[[kḄឋᓽm8”Ḅo.(3)ᵫj/kN8877uvj/k᧕m8'NC4C=4c8=72஺=ᵫMBCs^B'BA,᪷[kḄI/ᡂ᧕AAB?=CBBB'=CBCBC+CB'),m8xᫀ.iiARr-ூ|௃|
(1)᝞;••NBAC=NB'AC',—=-=<3,ACAB:./XABCsAABC,AC^//—V**»S^ABrc'S^ABC=------—“3)—3,/B=/B'.AC2')¡NA=/B-NM,21⚓/31⚓

21ᦑxᫀ2
3\60.Br)জ(2),+•j/k᜛Clk,NA4c=90஺.-e=NC4C=NBAC-ZBAC=90°-30°=60°.ᙠRtLAB^N/89=90஺N8Z᜛=60஺N4B'B=300.+.ABr=u2"AB,ᓽn=——=2.AB(3)•+•j/k459Cuvj/k,+.AC,//BB,.XV/BAC=36஺,*+AB=AC,.N/8C=N4C8=(180஺-36஺)=72°¦0=NCAC'=ZACB=72°.+.ZCABf=ZBAC=36°.ENB=NB,:AABCsWBA.:.AB+BB'=CB+AB.+.AB^CB-BB'=CB(BC+CB').CB'=AC=AB=B'C',BC=\,+.AB2=\(1+/1B),1±V5|8AB2VJB>0,.B'C'1+75..஻=----=------BC222⚓/31⚓

2227.᝞;ªᩚN8Ḅ⚔8ᙠ®¯Ḅ°±²ᙠ³´ᚁhḄ!஺ᜐ·᪥ᦪ¹º᜜ᐶᕡ¾¿ḄeÀÁᙠÂêᩚḄÄ+ᙠªᩚḄÅÆ4ᜐÂ8!3ḄÇ[215஺4C=10ÈÂ8ZBDA=45°.ÉÊ´ᚁCOḄᚁ+2i=l
Gmªᩚ48ḄÄ+.ூxᫀ௃ªᩚ48ḄÄ+Î210+3ÏÐÈÑ.3ூ|᪆௃ூᑖ᪆௃ÒÓ8£Ñ,ACE,Õ!஺K஺Ö4EØ!Ö.᪀ÚT[nT[C0F.ÜÕ|?ݳT[[km8ÞᐵUàḄ0+ᓽ.ூ|௃|
ÒÓ8஺ACE,Õ!஺K஺ÖØ!Ö.1i=tanZDCF=~f==—,V33Ö=30°.
ND4c=15°,+.ZADC=\50.+.CD=AC=10.ᙠRt/\DCF^,DF=CD>sin30°=10ஹ¦=5ÐÈÑ,2CF=CD>cos300=1OxÁ=5G,ZCDF=60°.2/BOÖ=45°+I5°+6O°=120°,.•.Z£=120o-90°=30°,23⚓/31⚓

23q=4=5ᙠRtADFEL-EF=tanE<33AE=10+5y/3+56=106+10.ᙠæ8/E^BA=4EtanE=(1073+10)x3=10+ᔞ5(È).33x
ªᩚ48ḄÄ+Î210+”Ï(È).3ூ!è௃é⚪ὃìí|T[[kḄîᵨÇ[ï[ᡂð⌕mᐜòóôõÇ[᪀⌼T[[k,|T[[k.28.᝞;1,u☢T[ᙶ᪗úxOy^!A(0,2),B(1,0),C(-4,0)!D2üUAChý!þÿBD,yF,OMAABDḄ᜜ᙊDḄᑗxE.(1)ᑨAABCḄ᜜(2)"Dᙠ$AC%&জ()*ACDEs/XABFঝ᝞02,OM1yḄ234N,67DNஹBN,"9:ABND4;&

24Z⚪T᪆*T*ᵫ(0,2),8(1,0),C(-4,0)b^*OA=2,OC=4,05=1,ᙠPQRQOCwPQRQ408F᪷vᳮb<*AC=^OA2+OC2=275>^^OA2+OB2=V5•(1)ᙠPQRQ710cwPQRQFtan/ZCO=°4=1tan/8/O=9C='OC2OA2ᡠcN/CO=/A4஺,+ZACO+Z=90°,+.ZBAO+Z=90°,ZBAC=90°,.../8CPQRQ.(2)জᵫ(1)^*NB/C=90஺ᙊMḄP*OEᙊ஻Ḅᑗ*.NBDE=9Q஺.+.NCDE+NADB=90஺,=/ADB+NABD=9Q°,:"CDE=NABD,:NDCE+NABO=90°,NAB0+NBAF=9Q°,:.NDCE=NBAF+./\CDE^/\ABF.ঝ"9:48NQ4;&•.•N/8N=90஺ᙊḄPᵫ஺8PQRQ/8NḄ:%Ḅᵫ/■BZOn/BZO,NBOA=NABN=90°,AB_OA:.AB2=OA^AN,'•ᓭ3VOA=2,AB=y[s,b<:AN=3,+.ON=-,OM=MN-ON=-,24ᙠPQRQOBNL,OM3tanZPSC=~OB4(3)G஺ᙠ$4C%,j~yFCD2᝞02*ᵫজ^CDESA/Bb*3■=--=AC=2-4s,BFAB3ᵫ;b*cz>,}25⚓/31⚓

25ᙠ9:;:<=)ᵫ?@AᳮCDBD=y/AD2+AB2=-•MNCBD=NFBO,ZBOF=ZBDE=90°,:.NBFOsXBED,.OFOB••=,EDBDEDE=2x,ᑣBF=3x,ᵫ?@AᳮGOF/BF-OB+=-J3x¡2-11575A-2x--5^/51HG:x=--333BF=^~,DF=BD-DF=^H~,331133.DE1IJDᙠKLACḄNOKP,᝞R3*+++஺TUᙊ஻ḄᑗK),NBDE=900.NEDC+NCDB=90஺,//ABD+NCDB=90஺.NEDC=/ABD,Y26⚓/[31⚓

26•:NDEB+NDBE=90஺,ZDBE+ZOFB=90°+./DEB=/OFB,.DECD2••NACDE^/A\ABF>b*-----=-----——-AC=2y/5r>BFAB3ᵫ¥=!b*CD=^-,:.AD=AC+CD=OP,CA333ᵫᳮ*BD=LD2+AB?■:NCBD=NFBO,NBOF=ZBDE=90஺,:.NBFOS/\BED,.OF_OB•♦=,EDBD¦*DE=2x,ᑣ"=3x,ᵫᳮ*OF=J8^2_0B2=J3X¡2_],+.DE=2x=^^-,BF=3x=^^~,DF=BD-16^65gF=575757}27⚓/31⚓

270329.᝞0ᙠ«☢PQᙶ᪗xQyF]^9:஺OBC;®஺(0,4),8(6,0).G¯°±jᦪ²=&(x>0)Ḅ0´$OCḄF4஺CE,QBCRSF.¦PXEFḄT᪆µ4yz=k2x+b.(1)<¯°±jᦪwPEḄT᪆µூ¶·¸¹*«☢%ᨵ»¼½"(4?)ஹN(X2,À)ÁÂ6ḄF஺Ḅᙶ᪗4(ÃÄᓃÆᓛ)௃(2)0ḄTÍ.X(2)3(3)xV+6ᡈ+L5VxV04ூT᪆௃ூᑖ᪆௃(1)᪷v/OCḄFb4(3,2),b¯°±jᦪT᪆µ4=Î᪷vX32E(-,4),F(6,1),CᵨÏᦪÐᓽbᑮPÒḄT᪆µ4+,x+523(2)EÓEGLO8G,᪷vE,Ôᙠ¯°±jᦪ=°Ḅ0´%bSVOG=SAOÖ,x×᪷vS&EOVSØEFBGlÙÚÛÜᓽb(3)᪷vE,ᐵÞßàḄḄᙶ᪗ᑖz4(-1.5,4),(-6,-1),bË̵á2+6-2x>0ḄTÍ4*x<-6ᡈ-1.5

28+.A(3,2),kâZ(3,2)ãᐭ¯°±jᦪy=åb=6,x+++¯°±jᦪT᪆µ4Xâá=6ãᐭæ1=9,bç1,ᑣ(6,1),xAaaâ4ãᐭè=—b3ᑣE(ߟ4),x223â5(-,4),F(6,1)ãᐭæ2=ê+6,b2L3.,24=—k+b2Tïð<2,1=6î+6b=5,.2PEFḄT᪆µ4+]%+5(2)᝞0EÓEG_L08G,;SஹE,Ôᙠ¯°±jᦪ=⁐Ḅ0´%,x:,ShEOyShOBF.1,ஹ945••SAEOLSIEFBG=L(1+4)x—=——M224(3)ᵫ0´bE,ᐵÞßàḄḄᙶ᪗ᑖz4(-1.5,-4),(-6,-1),k,ᵫ0´bË̵Äô31ு஺ḄTÍ4*xV-6ᡈ-1.5VxV0.xூ÷௃ø⚪ù⌕ὃüý¯°±jᦪ1jᦪᡂÿ
ឋḄᵨᦪᦪḄᙶ᪗ᦪᐵὶᡂ!.!⚪$ᶇ&ᵨᦪ'()ᑮ+,Ḅ-29⚓/031⚓

29!2.30.᝞456ᱥ8y=ax2+bx+cy9:C(0,4),;<9x=2x9:D,⚔>M,?DM=OC+OD,(1)6ᱥ8Ḅ!᪆B(2)DP(x,y)EF▲ᑁI6ᱥ8JḄKLAPCDḄ☢N>S,Sᐵ:xḄᦪᐵᑏPQRSxḄTUWXYxTZ[$SḄUEZ[\/x=2\ூ^ᫀ௃(1)y=-—(x-2)2+6B(2)Yx=4$SᨵU>8.QRSxḄTUW>0dK3(x-2)2+6.(2)Dd(x,—/(x—2)2+6),B|J(x,—J᮱+2%+4),jdkx9Ḅᚖ8m8CQ:nDm8CD>oe+4,eᐭ(2,0)Ak=-2,ᓽoߟ2x+4,M.SF(x,—2x+4)./.PF=~—r2+2x+4-(—2x+4)=—jr2+4x.(-jr+4x)=~—x2+4x.roa(x-2)2+6=0,!)xs2+2tX2=2-2u(vw)B.0«2+2t.VS=-1x2+4x=-^(x-4)2+8,...Yx=4$SᨵU>8.-30⚓/031⚓

30x5y⚪Eczᦪ{9⚪ὃ}~czᦪḄ4FឋஹᦪஹᦪஹஹczᦪḄᨬU.-31⚓/031⚓