初一年级平面直角坐标系所有知识点总结与常考题提高难题压轴题练?含答案与解析) - 百度文库

3ABCΪ

27ϼͰְ֡赽԰棬صҺƽֱϵ˹԰ľͼͼʾͼбԭxᡢyᣮֻ֪԰DΪ22ܰ

28ͼһֻ׳55ķÿС߳Ϊ1˶AȥBCD׳棬涨ΪΪABΪAB+1+3BAΪAB13еһʾҷ򣬵ڶʾ·ôͼ 1AC BD C +1 2ֻ׳·ΪABCDü׳߹·̣ 3ֻ׳Aȥ׳P·Ϊ+2+2+112+312ͼбPλã

29ͼʾֱϵУıABCDֱΪA00B90C75D27ıABCD

30Сүүɷḻ!±ijյĻţƽ㳡λүүҶ400ףѧλүү600ףүүҵƽ·Сѧ300ף400ף

糿600700 һ𵽺ƽ㳡 9001100 һѧ 430530 ƽ·СѧУʷ

1ͼʾиĵλȣͼбƽ㳡AѧBƽ·Сѧλã

2үүҵƽ·Сѧֱ߾룮

31֪A12B14 1ԽӦƽֱϵ

2߶ABеCдꣻ

3߶ABˮƽƽ3λȵõ߶A1B1д߶A1B1˵㼰߶еC1꣮

32ƽֱϵУMΪa2a 1a=1ʱMϵĵ ޣֱд𰸣

2Mƽ2λƽ1λõNNڵʱaȡֵΧ 33֪A01B20C43 1ABC

2PϣҡABPABCȣP꣮

34ͼֱϵУ֪A0aBb0Cbc㣬

22

abcϵʽ|a2|+b3=0c40 1abcֵ

2ڵڶһPmúmʽӱʾıABOP 3ڣ2£ǷڵPʹıABOPABCȣڣP꣬ڣ˵ɣ

35ͼ֪A23B43C13 1Cxľ룻 2ABC

3PyϣABPΪ6ʱֱдP꣮

36Ȥһ棺

йеʿȣԹС̤˷֮˵ͼйСͼеһABCDEFGHֲͬѡ߷һӡաγεĶԽߵһ˵㵽һ˵㣬ܶҲ٣ ҪͼеߵָλPӣģ6ߵ4ṩһ߷ ģ65ģ4壬24 1ṩһ߷ȱһ ģ6壬8ߣ7 4

2ٸһ߷ֻҪǰ߷ȫͬɣޣ߷ǣ

㻹дһ߷

37ͼֱϵУıABCDֱA23B52C24D22ıε

38ͼƽֱϵУABֱΪ1030ͬʱABֱƽ2λƽ1λֱõABĶӦCDACBD

1CD꼰ıABDCSıABDC

2yǷһPPAPBʹSPAB=SıABDCһ㣬Pꣻڣ˵ɣ

39ͼOABCУOΪƽֱϵԭ㣬AΪ40CΪ06BڵһޣPԭÿ2λȵٶOABCO·ƶųƶһܣ 1дB꣨

2Pƶ4ʱʱPλãP꣮

3ƶУPxΪ5λʱPƶʱ䣮

40Ķһ֣ڻش⣮ ֪ƽP1x1y1P2x2y2ľ빫ʽͬʱڵֱƽֱʱ빫ʽɼΪ|x2x1||y2y1|

1֪A24B38ABľ룻

2֪ABƽyֱϣAΪ5BΪ1ABľ룮

3֪һθΪA06B32C32жε״˵ɣ

һƽֱϵ֪ʶܽͳѹ

ϰ(𰸽)

ο

һѡ⣨15С⣩ 12007?PڵڶޣPxľ4yľ3ôPΪ A43 B34 C34 D34

ȸPڵڶжϳPķţٸݵ㵽弴P꣮

𡿽⣺ߵPڵڶޣ ĺ꣼0ꣾ0

֡Pxľ44yľ3ǩ3 PΪ34 ѡC

Ĺؼƽֱϵи޵ţļ壮 22007?ͼСָסĵΪ

A52 B63 C46 D34

⣬Сָסĵڵޣϵ޵ص㣬ѡɵô𰸣

𡿽⣺ͼʾСָסĵڵޣ ޵ĵصǣݸ ѡɵֻDϣ ѡD

ĹؼǼס޵ķţԺĸ޵ķصֱǣһޣ++ڶޣ+ޣޣ+ 32007?ͼ֪ӡΪ23ӡΪ13ӡڡΪ

A32 B31 C22 D22

֪ȷƽֱϵȻȷ꣮

𡿽⣺ӡΪ23ӡΪ13֪ƽֱϵԭΪױмĵ㣬ԵױΪxᣬΪмΪyᣬΪ

ݵóϵ֪ӡڡΪ32

ϵͷ779662525#qq.com(#滻Ϊ@)