位置与坐标期末复习卷(含解析)

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Ḅᔁஹ⌱⚪1.(-3,5)ᐵxḄPḄᙶ᪗()A.(3,5)B.(5,-3)C.(3,-5)D.(-3,-5)2.a>0,b<0,!(a,6)ᙠ()A.$%&▲B.$(&▲C.$)&▲D.$*&▲3.+A(n,2),B(-3,m)ᐵ./ᑣn-m1()A.-1B.-5C.1D.54.᝞4/P5NA08ᑁ%/ᑖ:;Pᐵ஺4,0BḄPi/P,>?8,P22@0AM,@M+BP2=6,ᑣDPMNᕜF5(A.4D.75.,PQ2+],-42-2)ᙠK%L&▲ᑁḄ()A.(3,2)B.(-3,2)C.(-3,-2)D.(3,-2)6.A(-1,-3)M8(3,W,OABPQx/ᑣ8ᙶ᪗5()A.(3,-3)B.(3,3)C.(3,1)D.(3,-1)7.AḄᙶ᪗5(2,-1),ᑣAᑮ.ḄST5()A.3B.V3C.V5D.18.VWᜧYZ[ᵫᜧ]^_ᡂabc/+K]ᵬeᙠ$fQ$gᑡ/ij⊤l5(6,8),ᑣmK]e$20Q$7ᑡ/⊤l5()A.(7,20)B.(20,7)C.(7,7)D.(20,20)9.ᙠP☢pqᙶ᪗rs/+(x-2,%)ᙠ$(&▲/ᑣxḄuvx5()A.00D.x>210.M(a,2),B(3,b)ᐵy/ᑣ(a+b)2014Ḅv()A.-3B.-1C.1D.3

111.pqᙶ᪗r/{|}ABC£ḄL⚔ᙶ᪗5A(-1,0)ஹC(-1,4),ᙠ$(&▲/ᑣBḄᙶ᪗5(A.(-3,2)B.(-1,2)C.(1,2)D.(1,1)12.+PCm,1)ᙠ$(&▲ᑁ/ᑣQ(-m,0)ᙠ()A.x{B.xC.y{D.)/(.⚪13.4(x,-4),B(3,y)ᐵx/!x+yḄv5.14.᝞4/Aஹ8Ḅᙶ᪗ᑖ:5(1,0)ஹ(0,2),+ABPᑮA|B|,AஹḄᙶ᪗ᑖ:5(2,a)ஹ(b,3),ᑣa+b=.8(0,2)A(\,0)15.᝞4Ḅ%LQc}/᝞ᨬḄP☢ᙶ᪗ᑖ:54(-2,1)MB(-2,-3),!$%CḄP☢ᙶ᪗.16.᝞4/{|}ABCD,⚔A(1,3)ஹ8(1,1)ஹC(3,1),“{|}ABCDᐜ¡x¢ᢚ/¤ᔣ¦P1Lᓫ¨"5%W@ᣚ/᝞«¬᪵/>®¯°2014W±ᣚ/{|}ABCDḄq@MḄᙶ᪗±5.43223417.᝞4/²}A5CDḄ⚔A,Bᙠᦪ/CD=6,A´Ḅᦪ5-1,ᑣBᡠ´Ḅᦪ5.

2D0R18.᝞4/ᙠP☢pqᙶ᪗rs/AஹBஹ஺Ḅᙶ᪗ᑖ:A(-2,5),B(-3,-1),C(1,-1),ᙠ$%&▲ᑁ¶%஺/·*¸}A3CQPQ*¸}/!஺Ḅᙶ᪗.AVAஹ5~4-3-Y-2XBC19.Pᙠ$(&▲/OᑮxḄST2,ᑮyḄST2,ᑣPḄᙶ᪗520.᝞4/A,BḄᙶ᪗ᑖ:A(1,2),8(2,0),ᑣDABOḄ☢¼.21.ᙠP☢pqᙶ᪗rX஺)/s/Pᙠx/O,.ḄST5¾,ᑣPḄᙶ᪗5.).¿À⚪22.(2015᧡•ᜧKÃÄ)ᙶ᪗P☢ᑁḄ)LA(1,3),B(3,1),஺(0,0),ÅDA3஺Ḅ☢¼.

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Ḅᦪᐵ.12ᜓᵨ25.(2015᧡•᧎᪥)᝞ᡠ!"ᙠᡠ$Ḅ%☢'(ᙶ᪗+"(1),-.ᑡᔜ1"23AஹBஹC7189:;<ᩭA(2,3)ஹ8(-2,-1)ஹC(3,2)(2)3BABCᔣE%F2GᓫIJK"ᔣ.%F1GᓫIJK"LᑮBA6C,ᑣ1AḄPQ14Ḅᙶ᪗RS1BḄPQ1᜛Ḅᙶ᪗RS1CḄPQ1CḄᙶ᪗RUὃWᫀY⚪[᪆]ஹ⌱_⚪1.1P(-3,5)ᐵaxbḄPc1dḄᙶ᪗()A.(3,5)B.(5,-3)C.(3,-5)D.(-3,-5)ூὃ1௃ᐵaxbஹybPcḄ1Ḅᙶ᪗.

5ூᑖ᪆௃᪷lᐵaXbPc1Ḅᙶ᪗ᱯ1opᙶ᪗qr"sᙶ᪗tRuvᦪwLWᫀ.ூ[W௃[o1P(-3,5)ᐵaxbḄPc1ᡝḄᙶ᪗(-3,-5),ᦑ⌱oD.ூ1{௃|⚪}⌕ὃᐵaxbPc1Ḅᙶ᪗"ᐵ1Ḅᙶ᪗Ḅrᓄ.2.஺>0,6V0,1P(a,b)ᙠ()A.]▲B.▲C.7▲D.▲ூὃ1௃1Ḅᙶ᪗.ூᑖ᪆௃᪷lᔜ▲1Ḅᙶ᪗ᱯ1ᑨᓽw.ூ[W௃[oo஻ு஺"b<0,.•.1P(mb)ᙠ▲.ᦑ⌱D.ூ1{௃⚪ὃ1Ḅᙶ᪗o'(ᙶ᪗+1ᨵᦪP]]PQSᙠxb1Ḅsᙶ᪗R0,ᙠyb1Ḅpᙶ᪗R0Sᔜ▲1Ḅᙶ᪗ᱯ1.3.¡1A(n,2)B(-3,m)ᐵa£1Pc"ᑣ"-¥a()A.-1B.-5C.1D.5ூὃ1௃ᐵa£1PcḄ1Ḅᙶ᪗.ூᑖ᪆௃⚪¦§¨᧕"ὃ%☢'(ᙶ᪗+ª«]1P(x,>■),ᐵa£1ḄPc1(-x,-y),ᓽᐵa£1ḄPc1"psᙶ᪗rᡂuvᦪ.᪷l14¯1Bᐵa£1Pc°w±²-³Ḅ´.ூ[W௃[o•••1A(஻"2)8(-3,஻])ᐵa£1Pc"n-3>m--2,n-,"=3-(-2)=5.ᦑ⌱D.ூ1{௃·]¸⚪¹◤⌕»Ḅ¼Ạ⚪"[¾ḄᐵP»1Ḅ¿ÀÁ.4.᝞"1PRN4O8ᑁ]1"ᑖÅÆ1Pᐵa஺4,ḄPc1Pi"P,:;Pi"Pi2È04aÈ08aN,¡ÉÊ2=6,ᑣB2஻wᕜJR()

6p,A.4B.5C.6D.7ூὃ1௃bPc-ᨬÎÏÐÑ⚪.ூᑖ᪆௃᪷lÐÒᚖ'%ᑖÐḄ1ᑮÐÒÔÕḄÖ×u¥"LᑮMP=MP|,NP=NP2,aᕜJwÚᓄRP\PḄJ.2ூ[W௃[oPiᐵa04Pc"S.0ARÊPiḄᚖ'%ᑖÐ".MP=MP\,Pᓃᐵa0BPc"S.0BRÊḄᚖ'%ᑖÐ".NP=NP,2aBPMNᕜJRMN+MP+NP=MN+MPI+NP2=PIP2=6.ᦑ⌱C.ூ1{௃|⚪ὃbPcÜḄឋÞoᙠbPcÜ+"PcbÔßḄPQ1ᑮPcbÔßḄÖ×u¥.5.1P(“2+i,-/-2)ᙠã]G▲ᑁḄ1()A.(3,2)B.(-3,2)C.(-3,-2)D.(3,-2)ூὃ1௃1Ḅᙶ᪗.ூᑖ᪆௃᪷l%äᦪåæᦪḄឋÞ²-1PḄpᙶ᪗sᙶ᪗Ḅ¿æçè"é᪷lᔜ▲ᑁ1Ḅᙶ᪗ᱯê²-1PᡠᙠḄ▲"ᯠì[Wᓽw.ூ[W௃[o•.•í()"஺2+1)1,-q2-2W-2,...1Pᙠ▲"(3,2),(-3,2)(-3,-2)(3,-2)+ðᨵ(3,-2)ᙠ▲.ᦑ⌱D.

7ூ1{௃⚪ὃᔜ▲ᑁ1Ḅᙶ᪗Ḅñòᱯê"ᔜ▲ᑁ1Ḅᙶ᪗Ḅñò[¾Ḅᐵ"G▲Ḅñòᱯ1ᑖÅo]▲(+,+);▲(-,+):7▲(-,-);▲(+,-).6.1A(-1,-3)¯13(3,஻?)"õAB%axb"ᑣ1Bᙶ᪗R()A.(3,-3)B.(3,3)C.(3,1)D.(3,-1)ூὃ1௃ᙶ᪗ÜឋÞ.ூᑖ᪆௃᪷lAB%axb"1A(-1,-3)¯1B(3,m),w1AஹBḄsᙶ᪗u¥"ö÷w±Lᑮ1BḄᙶ᪗.ூ[W௃[o%axb"14(-1,-3)¯1B(3,tn),m=-3..•.1BḄᙶ᪗R(3,-3).ᦑ⌱⚗4¿À"⌱⚗8┯ú"⌱⚗C┯ú"⌱⚗஺┯ú.ᦑ⌱A.ூ1{௃⚪ὃᙶ᪗¯ÜḄឋÞ"[⚪ḄᐵÀxb%Ḅ'ÐḄᡠᨵ1Ḅsᙶ᪗u¥.7.1AḄᙶ᪗R(2,-1),ᑣ1Aᑮ£1ḄÖ×R()A.3B.«C.üD.1ூὃ1௃ýþÿᳮ
ᙶ᪗ឋ.ூᑖ᪆௃᧕AḄᙶ᪗ḄᑮḄ᪀ᡂ!ᑭᵨ$%&ᳮ'(ᓽ*.ூ(+௃(,AḄᙶ᪗-(2,-1)ᑮ஺Ḅ,37+12=:.ᦑ⌱C.ூ>௃?⚪ὃBC$%&ᳮḄDᵨ!(⚪ḄᐵFGHI"K☢ᑁNᑮḄOPᐸᙶ᪗ḄKRSḄTUKR᪷”XNIY.8.[\ᜧ^_`ᵫᜧbcdᡂefg!hibᵬkᙠmnompᑡ!*r⊤t-(6,8),ᑣwibkm20om7ᑡ!⊤t-()

8A.(7,20)B.(20,7)C.(7,7)D.(20,20)ூὃ௃ᙶ᪗|&}~.ூᑖ᪆௃ᦪ⊤t}~ḄRG,mNᦪ⊤tᑡ!mᦪ⊤to!ᓽ*(+.ூ(+௃(,᪷⚪ᑖ᪆*,ᵬkᙠmnompᑡ!*r⊤t-(6,8),wibkm20om7U!⊤t-,(20,7).ᦑ⌱:B.ூ>௃⚪⌕ὃBCᦪ⊤t}~ḄR!᪷IᑡoḄG(⚪ᐵF.9.ᙠK☢ᙶ᪗!'(P(x-2,x)ᙠm▲!ᑣxḄ-()A.00D.x>2ூὃ௃Ḅᙶ᪗.ூᑖ᪆௃᪷m▲ᑁḄḄᙶ᪗ᱯ!ᑡOd!(Od(⚪.ூ(+௃(,•••(x-2,x)ᙠm▲!'x-20Ḅ-0௃ᙶ᪗K☢¤¥ᩩᙶ᪗§ᑖᡂC¨▲!©▲ᑁḄḄᙶ᪗ª«ᔜᨵᱯ!®IYGὃḄ¯ὃ!¯OஹR°±ᔠ³ᩭ'Nµ¶Ḅ!·᝞?⚪'xḄ.10.IM(º2),B(3,b)ᐵPy§¼!ᑣQ+6)2014Ḅ()A.-3B.-1C.1D.3ூὃ௃ᐵPx§ஹy§¼ḄḄᙶ᪗.ூᑖ᪆௃᪷ᐵPy§¼Ḅ!ᙶ᪗¾i!ᙶ᪗¿-¾Àᦪ!*஻Ḅ!᪷ÂᦪḄᏔᦪ\ÄG7ᦪ!*+ᫀ.ூ(+௃(,ᵫM(«,2),B(3,b)ᐵPy§¼!஻=-3,b=2.Ca+b)2014=(_3+2)2014=],ᦑ⌱,C.

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ᐵPy§¼Ḅ!ᙶ᪗¾i!ᙶ᪗¿-¾Àᦪ
ᐵP¼Ḅ!ᙶ᪗ᙶ᪗ο-¾Àᦪ.11.ᙶ᪗!7RABC஺Ḅ¥⚔ᙶ᪗-A(-1,0)ஹC(-1,4),஺ᙠm▲!ᑣBḄᙶ᪗-()A.(-3,2)B.(-1,2)C.(1,2)D.(1,1)ூὃ௃7RḄឋ
ᙶ᪗ឋ.ூᑖ᪆௃ᵫ⚪§!AC=4,04=1,ᵫ7RḄឋḄ>=Ä4c=2ᧇ!ZCA£>=45°,ØDELx§PE,ᑣND4E=45஺,ÛAOEGOῪ!AE=DE=J^-240=2,'0E=AE-0A=l,ᓽ*BḄᙶ᪗.ூ(+௃(,᝞ᡠt,VA(-1,0)ஹC(-1,4),§!AC=4,0A=l,•.•¨àABC஺G7R!:.AD=^AC=20,N040=45஺!ØDE_Lx§PE,ᑣND4E-45஺!/XADEGOῪ!2.AE=DE=J^AD=2,22.0E=AE-OA=\,.•.8Ḅᙶ᪗-(1,2).ᦑ⌱,C.ூ>௃?⚪ὃBC7RḄឋஹOῪḄᑨ&ឋஹᙶ᪗ឋ
HäÈÉ7RḄឋ!ØåæçGOῪG(Çè⚪ḄᐵF.

1012.hPm,1éᙠm▲ᑁ!ᑣQê-ë!0éᙠêéA.x§7ì§íB.x§Âì§íC.y§7ì§íD.y§Âì§íூὃ௃Ḅᙶ᪗.ூᑖ᪆௃᪷m▲ᑁḄᙶ᪗ºPî!ᙶ᪗ᜧPî!*O!᪷OḄឋ!*-%Ḅ!*+ᫀ.ூ(+௃(,ᵫPêñ!1éᙠm▲ᑁ!m<0,-m>0,஺ê-஻?!0éᙠx§Ḅ7ì§í!ᦑ⌱,A.ூ>௃?⚪ὃBCḄᙶ᪗!HóḄᙶ᪗ᱯG(⚪ᐵF!mN▲ê+,+é;m▲ê-,+é;m▲ê-,-é;m¨▲ê+,-é..õö⚪13.IAêx,-4éBê3,y
ᐵPx§¼!÷øx+yḄ-7.ூὃ௃ᐵPx§ஹy§¼ḄḄᙶ᪗.ூᑖ᪆௃᪷ᐵPx§¼Ḅᙶ᪗ᱯ,ᙶ᪗ù!ᙶ᪗¿-¾Àᦪ*xஹyḄ,úû*x+yḄ.ூ(+௃(,•••Aêx,-4é8ê3,yéᐵPx§¼!
.x=3,y=4,.".x+y-1,ᦑ+ᫀ-,7.ூ>௃⚪⌕ὃBCᐵPx§¼Ḅᙶ᪗!ᐵFGÈÉḄᙶ᪗ḄùᓄËÌ.14.᝞!Aஹ8Ḅᙶ᪗ᑖý-ê1,0éஹê0,2é,hþçÿABᑮAiB|,AiஹB\Ḅᙶ᪗ᑖ2,a
ஹb,3,ᑣ஺+6=2.

11ூὃ௃ᙶ᪗!"ᓄ-.ூᑖ᪆௃᪷'()Ḅᙶ᪗"ᓄ*+ᑮ,ᔣ*./016Ḅ2.ூ34௃35(1,0):ᓄ4(2,a)<ᙶ᪗=>?1,B(0,2):ᓄ(@3)Aᙶ᪗=>?1,ᑣ஺=0+1=1,i=0+1=1,ᦑa+b-\+\-2.ᦑ4ᫀ52.ூD௃E⚪ὃG?ᙶ᪗!Ḅ"ᓄ——*Iᑮᙶ᪗Ḅ"ᓄJKL3⚪ḄᐵN.15.᝞LQRSSTḄUVWXY!*᝞Zᨬ)\]QRSḄ☢ᙶ᪗ᑖ4(-2,1)_8(-2,-3),abcU]QRSCḄ☢ᙶ᪗L(2,-1).ூᑖ᪆௃᪷'4(-2,1)_B(-2,-3)Ḅᙶ᪗efCḄᐵghX34ᓽj.ூ34௃35kA(-2,1)_8(-2,-3),ᡠej+CḄᙶ᪗(2,-1),ᦑ4ᫀ5(2,-1).ூD௃m⚪ὃGᙶ᪗n⚪*ᐵNL᪷'4(-2,1)_B(-2,-3)Ḅᙶ᪗efCḄᐵg34.

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27...®ᙠhij▲.ᦑ⌱c.yez⚪tᔠ☢34ᙶ᪗5ὃ}åæCḄឋª᪷g⚪äE₝BïᦪCtᔠS⚪ḄᐵÔ.8.᝞Bðᡊò6óôõö■øáÎḄᙶ᪗ᙢBùᱏûü]ýe?ᨩᚽḄᙶ᪗1,2,ᨩᚽḄᙶ᪗-3,2.ᨵᢣᢵᙶ᪗0,0,ᢣᢵḄ!ᜧ#$56ᨩᚽDA.AᜐB.BᜐC.CᜐD.஺ᜐὃ,ᙶ᪗-.!./⚪ᦪ23ᔠ.ᑖ᪆᪷89ᨩᚽ:ᨩᚽḄ;<ᙶ᪗ᑖ=-.x?:y?ḄᜧA!BᯠDEFGHᙶ᪗IᓽKᑮMᫀ.OMO•••9ᨩᚽḄ<ᙶ᪗2,ᨩᚽḄ<ᙶ᪗2,...9ᨩᚽ:ᨩᚽḄQRSTUx?BVᑮx?ḄWX2,Y9ᨩᚽḄ;ᙶ᪗1,ᨩᚽḄ;ᙶ᪗-3,9ᨩᚽXB?1ZᓫBᙠy?Ḅ]^_ᨩᚽXB?3ZᓫBᙠy?Ḅ`^B᝞b.ᦑ⌱B.,ef⚪ὃghᙶ᪗-.!GHᙶ᪗S☢ᑁ,Ḅ!Kᵫ,Ḅᙶ᪗-.B,lᨵmnᦪo99op.

289.rst4Ḅvw2ḄoHRxyS☢GHᙶ᪗IBᐸ{9Z⚔,Uy?Ḅ}~?,ᑣ,Ḅᙶ᪗A.2,0B.0,-2C.0,272D.0,-272ὃ,ᙶ᪗lb2ឋ.ᑖ᪆᪷8vw2ḄoHRUstḄ⊈FoHRḄtB᪷8vw2ḄoHRSᑖF⚔,ᑮ,ḄWXBᯠD᪷8y?Ḅ,Ḅᙶ᪗ᱯOMᓽK.OMO•••vw2Ḅst$4,vw2ḄoHR$4B•.•vw2ḄoHRSᑖB⚔,ᑮ,ḄWX2gBUy?Ḅ}~?Ḅ,Ḅᙶ᪗0,-272-ᦑ⌱D.,ef⚪ὃghᙶ᪗lb2ḄឋB⌕ᑭᵨhvw2ḄoHRlstḄᐵIBvw2ḄoHRSᑖBrᙶ᪗?Ḅ,Ḅᙶ᪗ᱯ.10.᝞bᡠḄ,““U,1,-3,“”U,3,-3Bᑣ“¡"U,ὃ,ᙶ᪗-.!.ᑖ᪆ᐜ᪷8bᑖ᪆ᑮ“¡'’l¦ᙶ᪗Ḅ§¨©ḄSªᐵIBᯠDG«Sª¦,Ḅᙶ᪗KᑮᡠḄ,Ḅᙶ᪗.ᓽKᵨ“”¬᯿B¯Kᵨ“”¬᯿.ᵨ“”ᑣᐸSª°±ᔣ`Sª3ZᓫBᔣSª2Zᓫᑮ“¡”Ḅ!.OMOᵫbK“¡”Ḅ!Kᵫ“''Ḅ!ᔣ`Sª3ZᓫBᔣSª3ZᓫᑮBᡠrG«³,1,-3ᔣ`Sª3ZᓫBᔣSª3Zᓫᑮ,-2,0,ᓽ“¡”Ḅ!.ᦑ⌱C.

29,ef⚪ὃgh,Ḅ!Ḅ-.B⌱´9Z¦ᙶ᪗Ḅ,Bµ¶SªḄw·¸,Ḅᙶ᪗$¹ᵨḄw·.ºஹ¼½⚪11.,Aᙠx?BVl,ḄWX5,ᑣ,AḄᙶ᪗$-5,0ᡈ5,0.ὃ,,Ḅᙶ᪗.ᑖ᪆ᑖ,Aᙠx?Ḅ}~?lv~?ÀÁÂO.OMOÃ,Aᙠx?Ḅ}~?ÄB•••,4l,ḄWX5,...,A-5,0,Ã,Aᙠv~?ÄB,Al,ḄWX5,...,45,0,ÅᡠÆB,4-5,0ᡈ5,0.ᦑMᫀ-5,0ᡈ5,0.,ef⚪ὃgh,Ḅᙶ᪗B⌕ÇÈᑖ,Aᙠx?Ḅv~?l}~?ÀÁÂO.12.᝞bBÉZÊwËÌ$st1ZᓫtḄvw2B᝞Íᵨ0,0⊤4,Ḅ!Bᵨ3,4⊤8,Ḅ!BÐÑᵨ6,I⊤C,Ḅ!.|||5||||JIIIIi.nὃ,ᙶ᪗-.!./⚪ÕËÖ.ᑖ᪆K᪷8Sª°±OM_¯K᪷8¦À,Ḅᙶ᪗xyᙶ᪗IDOM.OMOr,0,0×Ø,BᑣC,0+6,0+1,ᓽ6,1.ᦑMᫀ¼6,1.,ef⚪ὃgÚÛ,Ḅᙶ᪗OÜn▭Þ⚪Ḅßà:▅âᳮOßà.OÜäÚÞ⚪◤⌕ᐜ-.,Ḅ!B¸,Ḅ!.ᡈὅG«ᑭᵨᙶ᪗I{Ḅªç·ᑣ“]è`éBèêé”ᩭ-.ᙶ᪗.

3013.¦,M(a,b),ì,Mᔣ]Sªc(c>0)ZᓫtBᑣᑮC,Ḅᙶ᪗(a+c,b).ὃ,ᙶ᪗lb2òᓄ9Sª./⚪¹°⚪Ö.ᑖ᪆᪷8ᔣ]SªB;ᙶ᪗èB<ᙶ᪗ôòOMᓽK.OMO,Mᔣ]Sªc(c>0)Zᓫtᑮ,C,,CḄ;ᙶ᪗a+c,<ᙶ᪗b,,CḄᙶ᪗(a+c,b).ᦑMᫀ:(n+c,b).,e_f⚪ὃghSªlᙶ᪗lb2ḄòᓄBøùSª{,Ḅòᓄ°±$;ᙶ᪗]ªèB`ªé_<ᙶ᪗ªèBêªé$O⚪Ḅᐵú.14.ûü▲ᑁḄ,þ(x,y),ÿ|x|=5,)2=9,ᑣPḄᙶ᪗(-5,-3).ὃḄᙶ᪗.ᑖ᪆ᙠ▲ᙶ᪗<0,"ᙶ᪗V0.$᪷&ᡠ(ᩩ*ᓽ,-ᑮx,yḄᐹ12.343•••6ᙠ▲.*.x<0y<0,89:=5,)?=9,.'.x=-5y=-3,ᦑPḄᙶ᪗(-5,-3).>3?@⚪ḄᐵCDEᔜ▲ᑁḄᙶ᪗ḄHIJ▲(+,+);M▲(-,+);▲(-,-);N▲(+,-).15.᝞QRAAOBV஺⌮Y┐[\90஺-ᑮA/TOQ.`AḄᙶ᪗a(a,b),ᑣAḄᙶ᪗a(-b,a).ὃᙶ᪗bQcdᓄJ[\.

31f⚪gh⚪.ᑖ᪆᪷&[\Ḅឋj“[\lᦋdQcḄᜧopcq'’stuvvcḄឋj3⚪.343ᵫQ᧕yOB'=OB=a,ZA'B'0=ZABO=9Q°,•.•4ᙠM▲••.4Ḅᙶ᪗a(-b,a).>◤}~[\vḄᦪldḄld.ஹ34⚪16.AABCᙠuvᙶ᪗ᑁḄ᝞Q.(1)ᑖᑏAஹBஹCḄᙶ᪗(2)ᙠᙶ᪗ᑁ4B1C1,஺bAABCᐵyhᑏBiḄᙶ᪗.ὃQJhdᣚ.f⚪Q⚪.ᑖ᪆(1)᪷&☢uvᙶ᪗ᑏᔜḄᙶ᪗ᓽ,(2)᪷&¡¢᪀¤4ஹBஹCḄAiஹBiஹClḄᯠ§¨©ªᓽ,$᪷&☢uvᙶ᪗ᑏBiḄᙶ᪗.343(1)A(0,3),B(-4,4),C(-2,1)(2)AAiBiCi᝞Qᡠ«,B1(4,4).

32>@⚪ὃ¬ᑭᵨhQ°±²³¡¢᪀´µ¤Ḅ3⚪ḄᐵC.17.¶Ὺ¸cḄ¹º40=2,»ºBC=4,ºvB=45஺¼½〉¿Ḅuvᙶ᪗Àᔜ⚔Ḅᙶ᪗.ὃ¶Ὺ¸cḄឋjᙶ᪗bQcឋj¶Ὺuvvc.f⚪ÂÃÄ.ᑖ᪆£>F_L8cᑖbE,F,ÅÆÇ᧕ÀAE,BE,CE,ḄsBCaxhAEa)h¼½ᙶ᪗Å,sÀᔜḄᙶ᪗.343AE_LBC,£>F_LBCᑖbE,F,ᑣEF=A£>=2,BE=CF=l,uvAABEÈZB=45°,ᑣᐸa¶ῪuvvcÊËAE=BE=1,CE=3.sBCᡠᙠḄuaxhᵫBᔣCḄÍᔣaÎÍᔣAEᡠᙠḄuayhᵫEᔣAḄÍᔣaÎÍᔣ¼½ᙶ᪗ᑣA(0,1),B(-1,0),C(3,0),D(2,1).

33>ÀḄᙶ᪗ḄÏ⚪ÅÀḄḄÏ⚪.¶Ὺ¸cḄÏ⚪,sÐÑÒ\ᓄauvvcḄÏ⚪.18.ÓyÔQcᢥ»☢ÍÖ©ªËᡂḄ(0,0)—(2,0)+(1,0)-(0,-1)+(1,1)J(I,-2)+(1,0)J(2,-1).(1)©ªQᫀÙJÚÛÜÝÞ(2)Qᫀᐵ)hḄhQcᑏßQᫀàᔜáḄᙶ᪗â-ᑮJÚÛÜÝÞὃᑭᵨhãäQᫀ.f⚪Q⚪.ᑖ᪆(1)ᐜ¼½uvᙶ᪗¤ᑮᔜ©ªᓽ,-4ᫀ(2)᪷&hḄឋj¤ᑮᔜḄ§¨©ªᓽ,-4ᫀ.343(1)᝞Qᡠl:ÜÝᩈ;(2)

34(0,0)J(-2,0),(-1,0)J(0,-1),(-1,1)—(-1,-2),(-1,0)J(-2,-1)-ᑮḄÜÝ“᪍>@⚪ὃ¬ᑭᵨhãäQᫀḄyê34@⚪ḄᐵC᪷&hḄឋj-ᑮᔜḄᙶ᪗}~ëQ.19.oíḄîïð⌕ᑮoò?ó〈(õJ*oöᱥõøùoíõÓRöᱥúᙠû᪥1ýþᑁ.ᐹ1ᙢ
⍝ᙶ᪗(6,6),⍝ᑁḄ᪗Ḅᙶ᪗ᑖA(-2,-3)B(2,-3),!"᪵$%&ᑮ(〈*Ḅ+ᱥ-•ARὃ0ᙶ᪗1234.6⚪0ᦪ9:ᔠ.ᑖ᪆0ᐜ᪷?Aஹ8Ḅᙶ᪗BCDEᙶ᪗FᯠH᪷?DEᙶ᪗FᵫBᑮCḄKLM2N&ḄKᔣPQ.RS0R0᪷?⚪TBCDEᙶ᪗FCᙶ᪗U(6,6),ᡠWXBCYZABKᔣ[4ᓫ3ᯠH^_H[9ᓫ3ᓽb&ᑮ(〈*Ḅ+ᱥ.c0d⚪ὃeᙶ᪗12340DEᙶ᪗f☢ᑁḄ34bᵫḄᙶ᪗12hᨵjkᦪl---lm.20.ᙠDEᙶ᪗Fpᵨrstuvw(-2,0),(0,3),(3,3),(0,4),(-2,0).(1)yz{|}9-(2)~CḄ☢(3)~CḄᕜ.

35ὃ02ᳮE9Ḅ☢.ᑖ᪆0(1)᪷?(-2,0),(0,3),(3,3),(0,4),(-2,0),BCDEᙶ᪗F,ᓽb9ᡂḄ}90(2)᪷?E9Ḅ☢ᓽb~R(3)᪷?2ᳮ~CᔜḄᓽb.RS0R0(1)᝞}ᡠ0ᑮz9(2)☢=1<1x2+L<1x3=2ஹ522(3)22+^22+^22+3=713+275+V1C^3.2+32+43+tc0d⚪ὃe2ᳮᙶ᪗h}9Ḅឋ¡¢ᜧ¤⚪Ḅᐵ¦ᙠDEᙶ᪗Fp§1Ḅ᪗CᔜḄᙶ᪗.¨©ὃeE9Ḅ☢ᕜḄª«.