2022年辽宁省铁岭市中考数学毕业试卷（附答案详解）

《2022年辽宁省铁岭市中考数学毕业试卷（附答案详解）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

2022
ḕὃᦪᔁ1.2022Ḅ᎔ᦪA.2020B.ߟ2022C.---D.-------202220222.⌕᪷A/Y+2ᨵ,XḄ()*+,A.x0B.x¥—2C.x2—2D.x>—23.᝞ᡠ"Ḅ#$%&'ᐸ./ᔆஹ1-------\AO______J2--------ஹஹ-----------1BOC./Z\D.4.5.456789:ᜩᵨ=>?Ḅ@A2BCDEFG515HI2J&᝞K⊤::ᜩᵨ=>?12356ᓫOPᐗRᦪ25431ᑣT15HI:ᜩᵨ=>?ḄUᦪVOᦪᑖXA.3,3B.2,3C.2,2D.3,56.YZᱥ\y=3/ᔣ_`a2bᓫO2cᔣK`a5bᓫO2dᑮḄZᱥ\

1A.y=3(x+2)2+5B.y=3(x+2)2-5C.y=3(%-2)2+5D.y=3(x-2)2-57.᝞2fghijABCVkljAOEFmᑁopO஺2ᑣADPAB=()A.2V2PV3B.V2PV3C.V3PV2D.V3P2V28.᝞2AC4rjABC஺Ḅsi\2tuAD=3,CD=4,vwxᢚ\C-4-0z:{1bᓫO|}Ḅ~}ᑮ஺v2vPPE1BCpvE,ᑣACPEḄ☢yvPḄxḄᦪᜧ9.ᜩḄᙠᨴᳫ2ᔣ5400000000᜜Ḅ220212“ᜩ¡¢”ᙠᶇK5¥pRḄᓺ§.ᦪ©400000000ᵨª§ᦪ«⊤"4.10.ᐵpXḄᐗ®l%2-6x+771=0ᨵ¯b°fḄ±ᦪ᪷2²ᑏ´bᔠ〉ḄEḄ)11.·ᐗ¸ᔛºᙊᡃḄ½¾¿À2kᨴᓝÂᐗ¸⁚Tᜩ2BÄḄᝤᝤÆ5ộºᙊ2ᐸᨵ3b>9ᕡV2bÉÊᕡ2BÄËÌᔛ¯b2ាÎᔛᑮ1b>9ᕡV1bÉÊᕡºᙊḄᭆ᳛.12.᝞2ᙠA/WC2NB=40஺24c=50஺2ᑣNDAEḄ}ᦪ4BDE

213.ᙠnABCD2Ø4BCḄ`ᑖ\ÚAOpvE,NBCDḄ`ᑖ\ÚA஺pvF,ÝAB=3,EF=2,ᑣBCḄ|.14.᝞2Aஹ8¯vᙠáâãᦪy=<0)Ḅè2A2Ḅé|\ÚxëpvC,ì4B=2BC,vBBE஻xëÚA஺pஹE,ᑣA/IBEḄ☢.15.ᐜᓄó2cô)P(m+1¢)+ø2ᐸn=-3°+û)-1.7'm-1'3m-3216.᝞27ýþ◤⌕
ᩩḄAB,Ḅ
ᕒᙠCᜐ
A,8Ḅᑖ45஺!30஺.%&ᙢ☢Ḅ)CH1200m,.H,A,8ᙠ/01234,567ᩩḄ4B(9:;<ᑮ0.1m).(?ὃᦪBCV2x1.414,V3“1.732)17.HI├K0Lᵹ├ḄNOPQLRS20ᐗ.᪷BVWXYPZ├KᓫS\25ᐗ]PQᜩḄ├K\250L_├KᓫSQ`1ᐗPQᜩḄ├Kab10LPc7LNOQᜩḄ├KyLP├KᓫSx(254xW50)ᐗ.(1)f6gyhxijḄkᦪᐵmn_(2)HIopQ├K1LqNOPrᣎt2ᐗuvwxyz{P%|Qᜩᡷ◀ᣎtᨬᜧᑭPᑣqNOQLKSbᐗQᜩᨬᜧᑭ\bᐗ18.᝞PAB஺஺Ḅ3PC஺஺0PNABCḄ2ᑖ4஺஺஺PDE1BCE.(1)5ᑨOEh஺஺ḄᐵmPOᳮᵫ_(2)஺F,%BE=3wPDF=3,6▢¡ᑖḄ☢¢.

319.¤¥¦48஺!4CBE§¨Ὺª«PAB=AC,DB=DE,4CAB=EDB=n°.(1)᝞1,Zn=60஺]P4®CEhA஺Ḅᦪᐵm\0(2)᝞2,Zn=90°]Pজfᑨ4®CEhA஺ḄᦪᐵmPOᳮᵫ_ঝZCE஻/IB,BC=6,40=1]Pf3µᑏgDBḄ·.(1)¸220.᝞P¹ᱥ4y=஺/+"+3½¾4(3,0),B(-1,0)Py¾C.(1)6¹ᱥ4ḄÀ᪆n_(2)᝞1,஺ÂÃÄ▲¹ᱥ40PƵOQ,AAE1ODE,OE=2AE,6஺ḄÈᙶ᪗_(3)%Ë\¹ᱥ4Ì;0Î.ᙠx¾ḄÏPQ\2☢3ᙶ᪗mᑁḄÑÒ0,᝞:VA,C,P,஺⚔ḄÃÔ«\Õ«Pf3µᑏgÖᔠᩩØḄ஺Ḅᙶ᪗.

4Ùᫀ!À᪆1.ூÙᫀ௃DூÀ᪆௃ÀCᵫ02022x¸-ÝÞ=1,ᡠV—2022Ḅ᎔ᦪ\0P2022ᦑ⌱CD.᪷B᎔ᦪḄpäRåæçᓽé.L⚪ὃë᎔ᦪPìí“î¢1Ḅïᦪð᎔ᦪ”\ò<ÀÙḄᐵó.2.ூÙᫀ௃CூÀ᪆௃ÀC᪷B⚪ÒPx+2>0,Àx>-2.ᦑ⌱CC.᪷BõöÏᦪᜧ¨0ᑡnæçᓽéÀ.L⚪ὃëḄ¥øCùú᪷nḄõöÏᦪ\ûüᦪ.3.ூÙᫀ௃AூÀ᪆௃ÀCý☢þP\0ïᙊᙊḄᨵᩩᔣḄ.ᦑ⌱A.ᑮ☢ᡠᑮḄᓽᡠᨵḄᑮḄ⊤"ᙠ$%.&⚪ὃ)*+%Ḅ,-$%.ᱥ0Ḅ1☢ᑮḄ%2%Ḅ3ᔣ$%42%Ḅ3ᔣᨵᐵ.4.ூ9ᫀ௃Dூ<᪆௃<᝞vZ1=47°,Z3=90°-Z1=90°-47°=43°,v43+44=180°,•••44=180°-43°=137°,•••MNḄOPQRST

5•••Z2=Z4=137",ᦑ⌱D.᪷XMY+YO┦YQ[\]43,^᪷X_⊡Yab\]44,ᯠd᪷XOMSTefYRg\<ᓽ.&⚪ὃ)*STḄឋiMY+YO┦YQ[Ḅឋi_⊡YḄabjk-.<⚪Ḅᐵl.5.ூ9ᫀ௃Bூ<᪆1<•••nopqr)*15set•᪷X⊤uᦪXw,⍝fᦪᙠy+zᓽfᦪ{3.|2]"*5}~Ḅ}ᦪᨬᦪ{2.ᦑ⌱B.ᵫnopqr)*15set᪷X⊤uᦪXw,⍝fᦪᙠy+z^ᑭᵨᦪḄabwkaᦪᙠyz.⚪ὃ)fᦪஹᦪḄ\জa஻ᦪXᢥnᑮᜧ᣸᝞”{᜻ᦪfḄᦪ.fᦪ᝞஻{ᏔᦪfOᦪḄSᙳᦪ.fᦪ.zᦪXaᙠfᦪḄfᦪa.zᦪXḄᦪ.ঝazᦪX]"}ᦪᨬḄᦪ¡{zᦪXḄᦪ.᝞zᦪXᙠᦪᑣᦪa.ᦪX£Ḅᦪ.6.ூ9ᫀ௃Bூ<᪆௃<¥¦ᱥy=3/ᔣ©Sª2ᓫf^ᔣ¬Sª5ᓫfᑮḄ¦ᱥ.y=3(x+2)2-5°ᦑ⌱B.᪷X}±ᦪ²©³´µ³¬µḄSª¶·¸T<9ᓽ.⚪2⌕ὃ)*±ᦪ²ḄSª⌕\º»¼½SªḄ¶·©³´µ³¬µ.7.ூ9ᫀ௃Bூ<᪆௃ூᑖ᪆௃&⚪ὃ)*1P¿ᙊஹᚖÁaᳮஹgP+YḄឋiஹ13ḄឋiஹgῪMY+YḄᑨa4ឋig,-°º»¼½ᚖÁaᳮஹgP+Y¿13Ḅឋi.<⚪Ḅᐵl.

6ÅÆ04ஹOBஹ0D,Ç0È஺H_L4BH,ᵫᚖÁaᳮ]AH=Ê]ËAOD.gῪMY+Y^AOH=4BOH=60°,AH=BH=^AB,]4஺=y/20A,AH=^-OA,Ì=2AH=<30A,¸Í]9ᫀ.ூ௃<ÅÆ04ஹOBஹ0D,Ç஺È஺H,᝞ᡠÎᑣÏH=BH=-AB,2,13ADEb¿gP+YA8CᑁÆ஺஺:.AOB=120°,/.AOD=90°,v0A=0D=0B,•••Ë4஺஺.gῪMY+YZ.AOH=BOH=|x120°=60°,.-.AD=V20A,Z.OAH=30",OH=-OA,2AH=-JOA2-OH2=—0A,2AB=2AH=2X—OA=MOA,2.AD___V2"AB-V30Aᦑ⌱B.8.ூ9ᫀ௃Dூ<᪆௃ÑWvBC//AD,•Z.ACB=DAC,vAPEC=£D=90°,•••PCESACAD,.CP_CE_PE•AC~AD~CD9-AD=3,CD=4,.AC=y/AD2+CD2=5,ÒÓᙠCAÔᓽÒ0<%Õ5Ô

7,CDPC4PorE=----=-x,AC5CᔆE
=-A-D-P-C3=-X,AC51P_E_-CEr-'=-1x-3%x-4%=—6x72,-y-225525ÒÓᙠAOÙÚÔᓽÒ5V%48Ô,PE=CD=4,CE=8—%,y=.E•CE=°x4xß8-àÑ=16-2x,áÒ0"Ḅ.10.ூ@ᫀ௃1C@ᫀDEFGூH᪆௃HJ᪷L⚪MN4=CF6G2-4nl>0,HNm<9,ᡠ=Y1,Zᨵ\]D^Ḅ_ᦪ᪷.ᦑ@ᫀ/J1C@ᫀDEFG.ᐜ᪷Lᑨc.ḄMdNᑮ2=C-6G2-4771>0,HD^.NᑮgḄiᯠkᙠ"iᑁYF]ᓽo.p⚪ὃ%᪷Ḅᑨc.JFᐗrs,Za/+bx+c=0CaM0GḄ᪷d=/—4acᨵ᝞|ᐵ}J4>0,Zᨵ\]D^Ḅ_ᦪ᪷~4=0,Zᨵ\]^Ḅ_ᦪ᪷~4<0,Z_ᦪ᪷.

811.ூ@ᫀ௃1ூH᪆௃HJ᪛/JCᵨA⊤+ᕡḄᙊB⊤+ᕡḄᙊGᐭ#xTV4/TVBBAABBAABAABAAABAAA5ᐳᨵ20^oḄᐸ61]ᕡ1]ᕡᙊḄᦪ/12,ᡠ=6Mᔛ\]ាᔛᑮ1]ᕡ1]ᕡᙊḄᭆ᳛=g=ᦑ@ᫀ/J|.᪛CᵨA⊤+ᕡḄᙊB⊤+ᕡḄᙊG+ᡠᨵ20^oḄ1]ᕡ1]ᕡᙊḄᦪᯠk᪷Lᭆ᳛.¡¢.p⚪ὃ%ᑡ⊤)᪛)Jᑭᵨᑡ⊤)ᡈ᪛+ᡠᨵoḄ¦஻§6⌱©ᔠ«¬AᡈBḄᦪm,ᯠkᑭᵨᭆ᳛.¦«¬AᡈBḄᭆ᳛.12.ூ@ᫀ௃250ூH᪆௃HJ®¯°±²Ḅ³´o=µ¶·¸஺¹¸ºABḄᚖ·¼ᑖ¸¾¸4ENDACḄ¿¼ᑖ¸.vDFᚖ·¼ᑖ¸ºAB,••DA=DB,:.ᓃBAD=Z-B=40°,B=40°,Z,C=50°,•BAC=90°,:.CAD=50°,••AE¼ᑖ44D,1•/LDAE=-Z-CAD=25°.2ᦑ@ᫀ/J25°.᪷L²³´ᑨÀo=¦NB4D,ᯠkᑭᵨÁ¿-Ḅᑁ¿;ᳮ¦/BACᓽo¦ÃC4DHÄÅ⚪.p⚪ὃ%²-Æp²Á¿-ᑁ¿;ᳮ^ÇÈH⚪Ḅᐵ8ÉÊËÌÍᮣÏÐᵨᡠ'ÇÈHÄÅ⚪.13.ூ@ᫀ௃4ᡈ8

9ூH᪆௃HJ᝞1,•••ÒÓ-ABC஺¼ÔÒÓ-AD//CB,AB=CD=3,AD=BC,Z.DFC=FCB,&'(CF)ᑖBCD,••DCF==/.FCB,AFEn/.zDFC=+,DF=DC,,1°ᳮoÕJAE=AB=3,/___£4___D+AF=DE,/,EiBZ..=3-2=1,2•40=4¹+EF+DE=1+2+1=4,••BC=4.᝞26ᳮoÇAB=AE=3,DC=DF=3,vEF=2,.40=4E+EF+=3+2+3=8.:.BC=8,Ö×ᡠØBC/4ᡈ8,ᦑ@ᫀ/J4ᡈ8.ᑖ\Ù-ÚÛᓽoজ᝞16EᙠFÝÞঝ᝞26,EᙠãÞ.ᵫ¼ÔÒÓ-Ḅឋá>^ῪÁ¿-ḄឋáoN@ᫀ.p⚪ὃ%¼ÔÒÓ-Ḅឋá^ῪÁ¿-Ḅᑨ;ឋáH⚪Ḅᐵ8µ¶\]^ῪÁ¿-ᑭᵨ^ῪÁ¿-ឋáHÄÅ⚪ìí6ὃîὃ⚪ï.14.ூ@ᫀ௃|ூH᪆௃HJåA²4H10C,åB²BG10C,,AyA.B\ᙠæçèéᦪy=F.x<0ḄË×AI.•,ê4
ëFSAAOH=|,vAB=2BC,BG_CB_1CG_CB_1dG-0•AH~CA~~3HG~AB~~2•••BG=-AH,HG=2CG3.•.B
3x,F

10***OG=-3%,HG=-2%>CG=-x,ᑣOf=-4x,11?S-oc=--OC-AH=--(-4X)-(--)=6,vBE஻8E஻xñòAOíE,ó´=(õ=(ö2=iS&AOCACJ3948S^ABE=gX6=-.ᦑ@ᫀ/J|.å4²4HIOC,å8²BGIOC,᪷L÷Çᩩ¬ᔠæçèéᦪ”ḄùúMd¦ABḄᙶ᪗ᐵ}§:;ý40CḄ☢ÿᯠᑭᵨḄABEḄ☢.⚪⌕ὃᦪḄ!"#$ᑖ$&ᡂ()Ḅ*+᪆-.ᙶ᪗ஹ$&23#ᮣ56ᣚ89+⚪Ḅᐵ;.15.ூ=ᫀ௃+@A-=(DEᑖ)vm-1m-1z(m+2)(m-2)(m—2)23(TH—1)m—1(m4-2)(m—2)_3m-6-m+2Gm=-3°+(1)-1=-1+2=1H,A-==—i.ூ+᪆௃᪷Kᑖ-ḄLᔠNOPᑣRA-ᓄT᪷KUᢣᦪWஹX᦮ᦪᢣᦪWḄNOPᑣZm,[ᐭ]Oᓽ_.⚪ὃḄ9ᑖ-ḄᓄT`ஹUᢣᦪa!X᦮ᦪᢣᦪaḄNObcᑖ-ḄLᔠNOPᑣ9+⚪Ḅᐵ;.16.ூ=ᫀ௃+@ᵫCD//HB,•••ACAH=AACD=45°,HBC=BCD=30",ᙠRte•••=45°,•••/LCAH=LACH=45°,AH=CH=1200m,ᙠRtAHCBe•••tanzCBH=—,1200—1200V3m>tan30°AB=HB-HA=1200V3-1200x1200x(1.732-1)=878.4m,=@gᩩiḄjkAB9878.4m.ூ+᪆௃ᙠRtzMCH!RtAHCBeᑭᵨ┦ᦪᵨCH⊤nZA4ஹ8”Ḅ2ᯠ]OZ48Ḅ2.

11⚪ὃo+pḄqᵨ-sஹtu⚪.⚪vwkxᜧ+z⚪Ḅᐵ;9ᵨ{C”Ḅ-~⊤nZAH!BH.17.ூ=ᫀ௃+:(1)᪷K⚪y=250-10(x-25)=-10x+500(2)ᜩᡷ◀ᣎ_ᑭwᐗᵫ@w=(%-20-2)(-10x+500)=-10x2+720%-11000=-10(%-36)2+1960,v-10<0,v25

12BD=J32+(3V3)2=6,31••sinzD^F=-=62•DBA=30°,4DOF=60°,•sin60°=,DODO2..DO=2V3,ᑣFO=V3,ᦑÄe▢ÆÇᑖḄ☢@ÈÉÊE@xbx3=2஻EÌ.36022ூ+᪆௃Í⚪⌕ὃoᑗ$ḄᑨÏÐPÑÒᡧ☢PÔÕ°±Z஺OḄ29+⚪ᐵ;.(1)p¼ᑭᵨ"ᑖ$ḄÏÖᔠ"#$Ḅᑨϸឋ´ZZDEB=EDO=90஺3×Z=ᫀ;(2)ᑭᵨÙÚÏᳮÖᔠᡧ☢PᑖÛᑖ᪆Z=ᫀ.19.ூ=ᫀ௃CE=4஺ூ+᪆௃+@(1)•.•n=60஺HAB=AC,DB=DE,■■.^ABC,aBDEÜ9ÔÝ•••BC=AB,BE=BD,Z.CBE=ABD=60°-AABE,
BCE4BAD(SAS),•••CE=AD,ᦑ=ᫀ@CE=AD-,(2)জ•••n=90஺AB=AC,DB=DE,•••^ABC=/-DBE=45°,BC=\f2AB,BE=^2BD,•••Z.CBE=AABD,—=—=V2,BDABBCEsுBAD,ß=V2,ADCE=&AD(ঝAC,BEF,

134BDᵫজCE=y[2AD=V2,AC=AB=^=3ávCE//AB.•CEFsABAF,.CF_CE_EF_\[2_1•,AF~AB~BF~3y[2-3'CF=-AF,EF=-BF,334b3“9V2+■AF=-AC=—,44BF=y/AB2+AF2=—,4BE=5A/2,•BD—5.(1)ᐜãäÔÝåãäᐰÔ(2)জᑭᵨ+ঝᑭᵨ!ÙÚÏᳮ+.⚪ὃoᐰÔḄឋ´!ᑨÏḄឋ´!ᑨÏÒÙÚÏᳮḄqᵨ9E⍝Ḅèᔠ⚪.20.ூ=ᫀ௃+@(1)éᱥ$Ḅ+᪆-@y=a(x-3)(x+l),Rx=0,y=3[ᐭ—3a=3,•••a=—1,:3y——(x-3)(x+1)=-x2+2x+3((2).஺(m,-Tn?+2m+3),ᵫ⚪m2-2m-3AE1tanÁ4OE—-------=—JmOE2•2m2—5m-6=0,¥(ìí)5+■m24

14•.DḄîᙶ᪗@ஹ'+@61(3)•••éᱥ$Ḅðñòp$@x=?=1,.••.P(l,n),G4P=ACH(3-l)2+n2=33+32,:.n=V14,n=—V14,r2P(1,VT4),P(l,-V14),2•••Qi(-2,m+3),Q(-2,3-V14),2GPC=acHl2+(n-3)2=18,•1•n=3+yfl7,n=3—VT7,34P(l,3+y/17),P(l,3-V17),34•••(?3(4,VT7),<2(4,-VT7),4GþCPAQHÍHÿ(1,1),•••3—1=2,•••(?5(2,2)ᡠQ(-2,V14+3)ᡈ(-2,3-)ᡈ(4,”7)ᡈ(4,)ᡈ(2,2).ூ᪆௃(1)!"ᱥ$Ḅ᪆&'y=a(x-3)(x+l),,-C(0,3)0ᐭ23456(2)!-D(m,+2m+3),᪷:tanz^lOE=ᓡ'9=^|=CD23456(3)EAC'GH!-P(l,n)ᵫAP=4C,PC=4CᑖLᑡNOPQR23-PḄᙶ᪗CR23-஺Ḅᙶ᪗EAC'VW$H᪷:X஺YACZ[ᚖ]^ᑖ_23-QḄᙶ᪗.`⚪ὃcdefgᦪiᐸklឋnopḄᑨr┦WtWgᦪruvwrᳮyῪtWpᑖ{y|}~⚪ḄᐵopḄᑖ{ᓄ'yῪtWpḄᑖ{.