河南省郑中学某学校2022-2023学年数学九年级第一学期期末达标检测模拟试题含解析

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2022-2023
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ABC$Ὺ&'A(ADLBCD,ABD=CD=40,AD=7502-402=30•••O,ᙠADyo>&NOOC,ᙠRtAODCz&ᵫR2=402+(R-30)2,{|BD}fdef40cm,~Z|⌚a&&ᨬf40cm.ூ௃⚪ᑖMὃḄ᜜Oᙊ᜜FஹᑁᑗᙊᑁFஹ$ῪḄឋH&ᔠឋ&⚪Ḅᐵ᜜FᑁFḄឋH$ῪḄᱯឋ.222ஹ(1)-1(2)oLḄ᪆Xf.y=—-3+2ᡈy=2(x+l)2—6ூ᪆௃⚪ᑖ᪆:পyozx=0,ᑣy=l,ᡠ|yoyḄf(0,1),(0,1)ᐭᱥoy=x2-2x+nz,5"=1,Z[¢ᱥoḄ᪆Xf7=/-2*+1=஺-1)2,ᡠ|ᱥoḄ⚔ᙶ᪗f(1,0).(1,0)ᐭᑮyoz&50=§+1,5§=—1,ফy=2x—4iy=9ὶª«¬Z52x—4=-,ᓽ2/—4x—6=0,5=-1/2=3,ᡠ|“o,2XXḄ⚔ᙶ᪗f(\1,\6)ᡈ(3,2),“¯o°j=2x-4zx=0,ᑣ\4,ᡠ|“o”LḄm²'(0,\4),c“o”LḄ᪆Xfy=,஻(x+l)2—6ᡈy=஻(x—3)2+2,ᵫ⚪³5:\4=᪻(0+1)2-6ᡈ\4=஻(022—3)2+2,5m=2,n=,ᡠ|“oḄ᪆Xfj=2(x+l)2—6ᡈy=(x—3)2+2.⚪᪆:পyoµ§x+1zx=0,ᑣy=l,ᓽyoyḄf(0,1),(0,1)ᐭᱥoy=x2—2x+”z,5"=1,•••ᱥoḄ᪆Xfy=x2-2x+l=(l",

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