1
鍒濅簩涓�娆″嚱鏁颁笌鍑犱綍棰橈紙闄勭瓟妗堬級
1
銆?/p>
骞抽潰鐩磋鍧愭爣绯讳腑锛岀偣
A
鐨勫潗鏍囦负锛?/p>
4
锛?/p>
0
锛?/p>
锛岀偣
P
鍦ㄧ洿绾?/p>
y=-x-m
涓婏紝涓?/p>
AP=OP=4
锛屽垯
m
鐨勫�兼槸澶氬皯锛?/p>
2
銆佸鍥撅紝宸茬煡鐐?/p>
A
鐨勫潗鏍囦负锛?/p>
1
锛?/p>
0
锛?/p>
锛岀偣
B
鍦ㄧ洿绾?/p>
y=-x
涓婅繍鍔紝褰撶嚎娈?/p>
AB
鏈�鐭椂锛岃瘯姹傜偣
B
鐨勫潗鏍囥�?/p>
3
銆佸鍥撅紝鍦ㄧ洿瑙掑潗鏍囩郴涓紝鐭╁舰
OABC
鐨勯《鐐?/p>
B
鐨勫潗鏍囦负锛?/p>
15
锛?/p>
6
锛?/p>
锛岀洿绾?/p>
y=1/3x+b
鎭?
濂藉皢鐭╁舰
OABC
鍒嗕负闈㈢Н鐩哥瓑鐨勪袱閮ㄥ垎锛岃瘯姹?/p>
b
鐨勫�笺�?/p>
4
銆佸鍥撅紝鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓紝鐩寸嚎
y=
2x
鈥?/p>
6
涓?/p>
x
杞淬�?/p>
y
杞村垎鍒浉浜や簬鐐?/p>
A
銆?/p>
B
锛岀偣
C
鍦?/p>
x
杞翠笂锛岃嫢鈻?/p>
ABC
鏄瓑鑵颁笁瑙掑舰锛岃瘯姹傜偣
C
鐨勫潗鏍囥�?/p>
5
銆佸湪骞抽潰鐩磋鍧愭爣绯讳腑锛屽凡鐭?/p>
A
锛?/p>
1
锛?/p>
4
锛?/p>
銆?/p>
B
锛?/p>
3
锛?/p>
1
锛?/p>
锛?/p>
P
鏄潗鏍囪酱涓婁竴鐐癸紝
锛?/p>
1
锛夊綋
P
鐨勫潗鏍?/p>
涓哄灏戞椂锛?/p>
AP+BP
鍙栨渶灏忓�硷紝鏈�灏忓�间负澶氬皯
?
褰?/p>
P
鐨勫潗鏍囦负澶氬皯鏃讹紝
AP-BP
鍙栨渶澶у�硷紝鏈�澶?/p>
鍊间负澶氬皯锛?/p>
A
B
C
O
x
y
x
y
A
B
O