201493012312yaxbxcabc0a0abc2.2yaxbxcxx2abcabc1.2yaxaa0a00y0xyx0xyx0xy00a00y0xyx0xyx0xy02.2yaxca0a0cy0xyx0xyx0xyc0a0cy0xyx0xyx0xyc3.2yaxha0a0hX=hxhyxxhyxxhy00a0hX=hxhyxxhyxxhy042yaxhka0ahkX=hxhyxxhyxxhyk0ahkX=hxhyxxhyxxhyk1.2yaxhkhk2yaxhk(h0)(h0)|k|(k0)(k0)|k|(h0)(h0)|k|(h0)(h0)|k|(k0)(k0)|k|(k0)(k0)|k|y=a(x-h)2+ky=a(x-h)2y=ax2+ky=ax22.hkcbxaxy2y:mcbxaxy2mcbxaxy2cbxaxy2mcbxaxy2cmxbmxay)()(22yaxhk2yaxbxc2yaxhk2yaxbxc22424bacbyaxaa2424bacbhkaa2yaxbxc2yaxbxc2()yaxhk.y0c0c2hcx10x20xx.xy.2yaxbxc1.0a2bxa2424bacbaa2bxayx2bxayx2bxay244acba2.0a2bxa2424bacbaa2bxayx2bxayx2bxay244acba1.2yaxbxcabc0a2.2()yaxhkahk0a3.12()()yaxxxx0a1x2xx.x240bac.1.a2yaxbxca0a0aaa0aaaaaa2.bab0a0b02bay0b02bay0b02bay0a0b02bay0b02bay0b02bayabababx2y0aby0ab3.c0cyxy0cyy00cyxycyabc1.2.3.x4.1.x2yaxbxcx2yaxbxc2yaxhkx2yaxhk2.y2yaxbxcy2yaxbxc2yaxhky2yaxhk3.2yaxbxc2yaxbxc2yaxhk2yaxhk4.1802yaxbxc222byaxbxca2yaxhk2yaxhk5.mn2yaxhkmn222yaxhmnka1.x20axbxc2yaxbxc0y.x240bacx1200AxBx12()xx12xx200axbxca2214bacABxxa.0x0x.1'0axx0y2'0axx0y2.2yaxbxcy(0)c3.x2yaxbxcabcabcx.2(0)axbxcax0a0x0x0x.y=2(x-4)2-3y=2(x-4)2y=2x2y=x22y=2x2y=x2y=-2x2y=-x2y=-x22y=2x2-4y=2x2+2y=2x2y=3(x+4)2y=3(x-2)2y=3x2y=-2(x+3)2y=-2(x-3)2y=-2x21110m20m6mMN1.2.y=ax2+bx+ca0y=a(x-h)2+ky=a(x-x1)x-x23.y=a(x+m)2+k(a,m,ka0)a0yxyxx=y.a0yxyxx=y.4.y=ax2+bx+cXy=ax2+bx+ca0x=-a2by=ax2+bx+cabac4421(10)6m20m5m.(1)(11)caxy2.ca,.(2)MN.(3)(2m)2m3m().12OxABCyABCD22231812xy1yx2=PPx3x41.1640_______230ABCDABxy2xx3.sts=gt2(g0)st()4.sts=60t-1.5t2530x100-x123456789101112605040302010P/Ox/7.80cm10cm1y3cmxcm20.723mcm840555090131yx/2wx/3