湖北省武汉市2021-2022学年中考数学模拟试卷（一模）含解析版

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20B}~⚪ὃ`ḄឋஹnG`Ḅᑨឋஹᐰ`Ḅᑨឋஹ`Ḅᑨឋ<ᔠឋ<ᵨGHḄIJlᜐᳮᡂNḄᐵ.24.ᦪ=%2++஺Ḅ*A,B,yC,08=0C.஺ᙠᦪ<<¡CQ=2,D/l¢ᱥDḄ¤¥

21ூᫀ௃(1)h=-2,c=-3&(2)ªḄᙶ᪗h(0,—2)&(3)´ᙠÃg⚪ÄḄQ,ᙶ᪗hA15ஹ_/315ஹ(ߟ,--1)ᡈ(K--7)•2424ூ$᪆௃ூᑖ᪆௃(1)CQ=2,ᑣᦪ¤¥È=1=-É6,ᓽ%=—2,ᑣᦪ⊤ÍÎh2y=x2-2x+c,OB=OC,ᑣ8ᙶ᪗h(-c,0),Ï8ᙶ᪗Ðᐭᦪ⊤ÍÎ<ᓽ0$&(2)DBEḄ⊤ÍÎhy=2x—6,Ïx=2ÐᐭÎ2y=2x2—6=-2,ᓽᙶ᪗hF(2,-2),ᓽ0$&(3)@PḄᙶ᪗h5,0),0⊤Õ3PNஹPAஹPBḄ¹

22(2)^Üᦪ⊤ÍÎhy=x2-2x-3,ᦪ¤¥hx=l,ᑣ⚔Eᙶ᪗h(1,-4),ÏEஹ8ᙶ᪗Ðᐭᦪ⊤ÍÎ3m+஻=0fm=2y=2ீ<$2J,m+n=-4[஻=-6ᑣDBEḄ⊤ÍÎhy=2x-6,ᵫ⚪Ä2F'Ḅâᙶ᪗h2,Ïx=2ÐᐭÎ2y=2x2-6=—2ᓽᙶ᪗hª(2,-2),EḄᙶ᪗h(0,-2)(3)´ᙠ஺Ãg⚪Ä.@Pᙶ᪗h5,0),ᑣPA=஻+1,PB-PM-3-n,PN=-n2+2n+3᝞

23—(n+1)(3—ti)——(—/?"+2n+3),QR:.QR=1জäQᙠDPNḄåæç<஺Ḅᙶ᪗h5-I,“2-4஻)