中考数学专题：函数知识点总结

12xyxyxyyx*YXXY34123455678()1xyO2xyxy3xyxyP323245(1),,,,,,,,(2)xy6(1)x(2)y(3)(4)(5)7Aabx|b|Aaby|a|1ykxbkb0kx0bykxykxb0b0kykx0b0k2y=kx(kk0)k.y=kx(k)kx1bk0y=kxxyk0?y=kxxy(1)y=kxkk0(2)001k(3)k0k0?(4)k0yxk0yx(5)|k|y|k|x3y=kxb(k,bk0)yx.b=0y=kxby=kx.y=kx+b(k)kx1by=kx+b0b-kb0y=kx+b,y=kx|b|.b0b01y=kx+b(kbk0)20b-kb03k0k0b0b000bk00bk00bk00bk4k0yxk0yx.5|k|y|k|x.6b0y=kxbb0y=kxb.0kkxbkkb0k0k0b0b0b0b0b0bOxyyxOOxyyxOOxyyxOyxyx4y=kxb..0b.0.b0b0b=0k0yxk0yx5y=kxby=kx|b|b0b0y=kxa+3b-2a+3=kb-2k06y=kx(kk0)ky=kxb(k,bk0)yx.b=0y=kx.X001k0b-kb0k0k0k0b0,k0b0k0b0k0b0k0yxk0yx|k|y|k|xb0y=kxbb0y=kxb.611bxky01k22bxky02k121kk21bb221kk321kk21bb4121kk712xy34.8ax+b=0aba00.y=ax+bx.9ax+b0ax+b0aba00.101ax+by=cbcxbay.2222111cybxacybxa2222211111yybcxbabcxba.11y=kxby0bxkb-0.y=kxbb0kbbkb221s2