山东省烟台市、龙口市2022-2023学年数学九年级上册期末综合测试试题含解析

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2022-2023
ᦪᔁὃ
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18•••Å8c.᪆#
y=--x+2,•.•P£ÆB_y..Oᙶ᪗
(2,1):.PD=2•••PDÆB_yTAPDE=NOCB-PEIBC,.NPED=NCOB=90஺,.\PDE-NBCO,"DEMCOḄ☢ÈÉL-Ê>PDBCḄÆc•••AfiCOḄ☢È
4,.•.ËPDEḄ☢È-=-12Ì5(3)Í“MG_L6C_G,ÍM"”//AB_”,.^MGH~^COB,..-=—=75MGOC•.0MÅѨᑗ.ᵨ6=6.,.Ó”=5NMḄᙶ᪗
x,—5x?+¦x+2)᝞1,”Ḅᙶ᪗
|Õ+5,-5Ö2+—x+2jOᐭÅy=—+2'1137—(x+5)+2=—xH—x+2222.'×=—1,Õ2=5"Ḅᙶ᪗
(-1,0)ᡈ(5,—3)

19᝞2,”Ḅᙶ᪗
Øx—5,x~+¦x+2OᐭÅy=—2'1,Ùc123.—(x-5)+2=—H—x+2222cÚÕ.ÛM
(TO)ᡈ(5,-3)ூ௃⚪ὃHHTÜᦪḄឋ\=TÜᦪḄÝ⚪(1)ᵨḄQÞᦪ¦(2)ᵨ¨©~*Ḅឋ\Q~*Ḅ☢Ȧ(3)᪀⌼¨©~*ᑭᵨ¨©~*Ḅឋ\ᩭ.ãÝ⚪ᓽF.39323ஹ(1)y=f_2x—3¦(2)OP=jäåOEᨵᨬᜧR.ᨬᜧR-è¦(3)஺=éäḄ☢Èᨵᨬᜧ27(315ஹRᨬᜧR-Foä"Ḅᙶ᪗
ê,Vjj.ூᑖ᪆௃(1)@Aஹ3Ḅᙶ᪗OᐭTÜᦪ⊤ë#ᓽFQ.¦(2)NOP=x,ᑣP3=3-x,ᵫAPOEîACBP'(LMåF⊤D0EḄᑭᵨTÜᦪḄឋ\FQ(å0EḄᨬᜧR¦(3)ÍMMH//)ðBN_“ᵫ=SABMH+=gMH•0BᓽFQ..ூG.௃.(D)•.•ñᱥyuf+Ar+cóÍA(-1,O),B(3,0),l-Z?+c=Oô43õᙶ᪗Oᐭ#,9+3ö+c=0b=-2.'ீᦑñᱥᦪᐵÞ⊤ë#
y=x2-2x-3¦

20(2)VA(-1,O),8(3,0),:.AB=OA+OB=1+3=4,V.ABCD/)ZABC=9Q°,PC±BE,ZOPE+ZCPB=90°,NCPB+NPCB=90°,:./OPE=/PCB,0VZEOP=ZPBC=90°,:.NPOE~kCBP,.BCOP••=9PBOE1OP=x,ᑣPB=3—x,.4_x•.----=----93-xOEV0

21NÅ8NḄ.᪆#
t=r+),.J3k+8=0"[b=—3'k=\...ÅBNḄ.᪆#
y=x-3,NÓ(4,/V2஺V3),ᑣ“ø,஻V3),:.MH-ci-3-(ú-2cl-3)=-cT+3cl,ττ](3Y27S^MNB=S&BMH+SIMNH=~MH-OB=+3a)x3=--a--+—,2ZIZJ8V--<0,2327,315ஹ...a=ûäAMBNḄ☢ÈᨵᨬᜧRᨬᜧR-ᡭoäMḄᙶ᪗
VT.ூ௃⚪ὃHTÜᦪḄÛᔠ⚪þÿ
ᦪḄᙶ᪗ᱯஹᦪḄឋḄᑨឋ;ᑭᵨᦪ!"ᦪ#᪆%&ᳮ#ᙶ᪗ឋ(ᑭᵨ)⊤+,-./Ḅᐵ.ᑭᵨᦪ2ᔠḄ4567ᦪ892ᔠ:ᩭ(ᑭᵨḄᙶ᪗Ḅ<=⊤+,-Ḅ>?@#⚪ḄᐵB.24ஹ(1)஻ḄDE-3ᡈ1&(2)জf=2±#ᡈ-4ᡈ0,ঝ-2-
WkW-2(3)J"=0,"=5,1V"V3K(LABCDḄMGᨵOPᨵQRᐳ.ூᑖ᪆௃(1)ᐜYZG2Ḅ⚔ᙶ᪗#᪆%(ᯠ]^Pᑖ_ᙠG1G2abcdef"#ᓽh&(2)জᐜᑖ_"iG1G2Ḅ#᪆%(ᯠ]^Pᑖ_ᙠG1G2abcdef"#ᓽh&ঝ2ᔠZ᝞1,ᓽhYkḄkDm&(3)2ᔠZ᝞2,᪷oᑖnḄkDmᑖpefᓽh"#.ூq#௃(1)•sᱥ,u=᮱-4x+஻=(x-2)2+n-4,⚔ᙶ᪗E(2,n-4),•••yGizᙶ᪗{|}180°~ᑮG2,GzḄ⚔ᙶ᪗E(-2,-஻+4),G2Ḅ#᪆%Ey=-(x+2)2+4-",P(-1,2)ᙠGi,

22.•2=9+஻-4,/•n=~3LP-1,2
ᙠDMG2)/•2=-1+4-n9NᡠP<-1,2
ᙠDMG)"Ḅ8-3ᡈ12
জ'஻=-1()ᑣDMGiḄ᪆Ty=x-2
2-5,DMG2Ḅ᪆TJ=-x+2
2+5,L஺31ᙠDMGi).*.1=Z-2
2-5,2±-y/69L஺61
ᙠDMG2)1=-Z+2
2+5,..t\=-4,2=0ঝ᝞D1,'x=2()y=-5,'x=-2()y=5,VJDMG”ᙠyHWX)'y=5()YU5=(x-2)2-5,x=2+J10>3,

23VJDMG2,ᙠyHZX)'y=-5()ᑣ-5=-(x+2)2+5,.*.x=-2--x/To.'(&V3)()DMGV[\ᦪḄᨬᜧ85,ᨬ^8-5,/«-2-y/10WkW-2(3)᝞D2,•.,DMG2Ḅ᪆Ty=-(x+2)2+4-஻)DMGiḄ᪆Ty=(x-2)2+n-4,DMG2Ḅ⚔ᙶ᪗(-2,-஻+4),abHI(0,-”)DMGiḄ⚔ᙶ᪗(2,n-4),ayHI(0,'஻T-1()DMGiacA3C஺ᨬd1eI)DMG2acA3C஻ᨬd1I)'-1V஻VO()DMGiac45C஺ᨵ1eI)DMG2ac45஺ᨵ3I)'"=0()DMGacABCQᨵ1eI)DMG2acA8CDᨵ2I)ᐳeI)'OV஻W1()DMGacA5COᨵ1eI)DMG2acABCZ)ᨵ1I)'1V஻V3()DMGiac48CDᨵ1eI)DMGzacABCDᨵ2I)ᐳeI)'34"V7()DMGiacA8C஺ᨵ2eI)'3W஻V5()DMG2ac48coᨵ2eI)"=5()DMG2acABCZ)ᨵ1eI)”>5()gᨵI)•.•cABCDḄhaDMGᨵijᨵekᐳ)

24')஺7()DMGiacABC஺ᨬd1eI)DMG2acABC஺gᨵI)NᡠP'஻=0,n=5,1<"V3()c45C஺ḄhaDMGᨵijᨵekᐳ.ூl௃m⚪oJp\ᦪNᔠ⚪)ὃsbp\ᦪDtḄឋvஹp\ᦪḄ᪆Txyp\ᦪDtḄ)z{ᑖ}~?m⚪Ḅᐵ.25ஹἠ[?20ᐗ/.ூᑖ᪆௃᪷ᦪxἠ=40000ᐗ)ᓽᕜ[▲ᦪxyἠ.ூ௃᪷ᕜ4ᐗḄἠᦈᐭ)&xy=40000ᓽx(-500x4-1)=40000x2-24x+80=0&xi=20,X2=4xi=20,X=4ᑖ!ᐭy=-500x+l/2&yi=2000,y=100002ᑴᦪ)ᡠxx=20,ἠ[?20ᐗ/.ூl௃ὃsbᐗpḄ[ᵨ)⚪Ḅᐵ?¡᪷⚪¢ᑡ)¤¥¦ᜧ.3(317>26ஹ§¨ᔣ)VªH8=)⚔2<22Jூ᪆௃«⚪ᑖ᪆:ᐜ®E¯°Vp\ᦪḄ±T²³¯ᡂ⚔T)µ᪷p\ᦪDMឋvᑏ§¨ᔣ)VªH)⚔ᙶ᪗.«⚪᪆y--2x2+6x+4,=-2(x2-3x+-I+4+-,I4j2,3«J317§¨ᔣ,VªHx=—,⚔922T