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1112)5(;)4();3()3(;2)2(;1)1(222xycbxaxyxxyxyxy(6)y=2(x+3)22x2A1B2C3D42.213yx2yx23yxABCD312212xyA21B-21C2-1D-2-14.)2(2mmxmxymA02B0C2D5.213xy2231xy2323xyA321yyyB123yyyC231yyyD132yyy62yx2yxABCD72yaxbxc0a0abca+b+c0a-b+c0A1B2C3D48-1-2110Ay=32(1)x2By=32(1)x2Cy=32(1)x2Dy=32)1(x+2923yx12()A.23(1)2yxB.23(1)2yxC.23(1)2yxD.23(1)2yx-1Ox=1yx210244yxxA20B2-2C2-8D-2-811.y=12x2+3x5A.y=x2+3x5B.y=12x2+2xC.y=12x2+3x5D.y=12x212y=22(2)x3y=22(2)x4ABCD13.21(5)33yxA(53)B(53)C(53)D(53)14y=222xmxmmAm1m2Bm0m1C1m0Dm115.ymxm222ymxxm0m16y=122x2x5Ax=2Ba=2Cy=2Dx=417.y=221xxABCD18y=26xxcxcA0B6C3D9xyOxyOxyOxyO3192yaxbxca0,b0,c0ABCD20.kxy222kxkxy21a0,b0y=2axbx22.A-4y1B-3y2C1y3y=x2+4x-5y1y2y3Ay1y2y3By2y1y3Cy3y1y2Dy1y3y223.2yax0axyxxyx24y=21(2)2x4xyxxyx25.243yxxya2()xhk26y=24xx127.y=3x26728.2yaxbxc()PabcyOxOxyyOxyOxyOx-1Ox=1yx429.2288yxx30.1A14B25210301531.y=ax2+bx+cx=1y523.32.y=-x2+bx+52-3.1.2xyxxyx33.cbxaxy2xA-8,0B20yCACB=90.12yxBACO54)1(2xy1.B2C3.B4.C5.C6.D7B8.C9.A10.C11.B12.B13.A14.D15.C16.A17.C18.D19.D20.D21.A22.C23.y00x0x024.y-2-4x=-2x-2x-2;25.1)2(2xy-2-1x=-1;26.(-2,-5)x=-2;27.7)6(32xy28.29.1y=a2(8)x9x=0,y=1a=18,y=21(8)8x9=21218xx2y=2axbxc,21,8,249,4cbaacba1,82,1.abcy=21218xx30.1231.5)1(22xy32.1b=-2522xxy(2)(-1,6)x-1x-1415,25,45cba633.(1)OBOAOC2OC=4,C0,4