湖北省武汉市某中学2022-2023学年数学九年级第一学期期末经典试题含解析

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2022-2023
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18=6+76=8A/3ÂJADPEḄ☢Í)8Î.ூ./௃1⚪ὃ56°JḄឋ;ᐰJḄᑨ¥ឋ;Jᑨ¥ឋ;AB¦§ᐵ]Ï,ÐÑÒÓÔÕ9)⚪ḄᐵP.324ஹ(1)y=--x+4(2)1ூᑖ᪆௃(1)Öx=2×ᐭy=x,y=l,gA(2,1).᪷a±ØÙÚr9bḄ᪆Ûy=x-4,gB(0,-4)ஹC(4,-2).Ür9LḄ᪆Ûy=kx+b,ÝAஹCÞ.Ḅᙶ᪗×ᐭᑭᵨáâᦪ¹ᓽgr9LḄ᪆T(2)᪷ar9LḄ᪆gD(0,4),BD=8,²ᑭᵨJḄ☢ÍãᓽgABDCḄ☢Í.ூk௃᝞(1)Öx=2×ᐭy=x,y=L...AḄᙶ᪗Û(2,1).•.•Ýr9häyåᔣÀ±Ø4çᓫéhêᑮr9h,Cr9bḄ᪆Ûy=x-4,.,.x=0Wy=-4,AB(0,-4).Ýy=-2×ᐭy=x-4,x=4,....CḄᙶ᪗Û(4,-2).Ür9LḄ᪆Ûy=kx+b,,r9blA(2,1)ஹC(4,-2),

19஻=43LḄ᪆y=-yx+43(2)Vy=--x+4,.,.x=0y=4,AD(0,4).VB(0,-4),BD=8,/.BDCḄ☢!=,X8X4=1.2ூ$%௃'⚪ὃ*+,-.ᦪ012345ᣚ789ᦪ:;Ḅ᪆,-.ᦪ01<$Ḅᙶ᪗ᱯ@Ḅ☢!,AB;C;CLḄ᪆⚪ḄᐵE.25ஹ(1)27(2)23ூᑖ᪆௃(1)HX=1Iᐭy=—X,;KNḄᙶ᪗ᯠL᪷N789ᦪ:ᓽP;KAḄQR(2)᪷NST8ᳮ;K4Ḅᙶ᪗ᯠLᑭᵨ789ᦪ:;K48Ḅ᪆WXYZ.ᦪḄ᪆ὶ;KMḄᙶ᪗ᯠL᪷N☢!\ᓽP;KA30MḄ☢!.ூ]௃^(1)•.•/`aN$$NḄbᙶ᪗1,39.*.V=—xl=—,429.N(1,-),2•.•$NᙠXYZ.ᦪy=&(x>0)Ḅ01<9.\*=lx-=272(2)••$Aᙠ/<,••dA/w,,ef,4VOA=10,

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