《 二次函数的图象与性质》同步优生辅导训练 2021-2022学年人教版九年级数学上册

222221231322222212313231231322021-2022学人版九级学册22.1次函的象性》同优辅训（答）一选题共小题y2x+13A2

2

B2x

2Cyx

Dyx+3axA1Aa0B40C0yD2M+1BAB2A0

B0

C

D13yyxx+mAyy

Byy

Cyy

Dyy2xx+1xmAm3Bm3m2CmDm3

222222222222yax+1mx30y1①0②yx3③a④m+16a

⑤b4acA4B3CD1y++1052yA5B3DkxxA

B

D二填题共小题ABCD4FHABDAAEBFCGDHEFGH10PyxPx

222222221122112122222222112211212yx1512xx+1x4c13xxm14ax+3x1202115x+x16+0xAB1C①+0②4ac2a③xbxa④Mxxxxx2y3三解题共小题171A1003x22231318x1+h3301ah221

22222219+4y+bx+cAyx1PBOABO20ABy

AB241AB23yxP

PAB

222221a1Hya+HxAyCA30PH1HACHAPPDDPDEACPEF3QHlHPQP

222222222222参答一选题共小题yx+13yx

x+3a+2aAx213BDxCDAxy0x+1x12xy2+1323yaxb02

yxM0D

22212313132222222212313132222222222yx4x+1x1y3yyx4+m3yx11y1yCym2+1xx2x204m210m2m2D1yabcabc①0xx0y1②x0yx+1aax+bxbcy01212a③x4ambcbaca+1216aam

222222cm

④⑤②④⑤y+0x105x25y+ky+0k0ykx+1D二填题共小题xCGDHAHDGBExAHECFGDGHSASAEH+90+GFCHGD90

2222222222222222222222222222122EFGFGH90EHHGFGEFGHeq\o\ac(△,Rt)EAHEH+x+x

四边形

2xx+162x

四边形

8810Pxx23PABOAPBOAPB2+2OA2xx3+2x2x+62x

32+

xOAPB

y21+82y21+252x+3y2x+112xx4cc14

413x1xx2+mym1

22222222222222222222222222m1m114yx1x2020x

xx

220210x0y3x315xaxa0a410216y

+bxc0xA1002ab0①

②①

bcbaca43ab4ac2a16a2a②③xxbxa0gbxa0aa

22222112121222221121211212111121121211xbxaxa0﹣bc

a

x③④

yax+xbxbyax+xaxxaxx+x2ax+2x0x+x20ax+x20y0y④⑤ACOAc3a3

AC

BC

ACAB4AB

2222222222222222222222⑤①④三解题共小题17（1yax+bx+a0y+4x3223yx+21a1+23ayxx+18033yx1+1h2422﹣y4+219xxy044A0440x++c

2221221222212212y+42xx+4ABOx++424xPxx4y++48PBkxbP0PB4yx404PBy04PMyNABPAN+OB820ABxA444

AOBAOCBOC11212343AOBAOCBOC1121234342222ABkxbAB

+22

+2中x0y202△eq\o\ac(△,S)eq\o\ac(△,)△

+

63OCABPeq\o\ac(△,P)eq\o\ac(△,)ABABAOBPABPeq\o\ac(△,P)eq\o\ac(△,)ABeq\o\ac(△,P)eq\o\ac(△,)ABAOBP4211Ha+1A30+40a1H+421xx+3xy3C03ACymx

22222222222203

ACyx+3Pm2Emm+3+33++1mOAOCAOCPDADP90A