閰嶅
K12
鍐呭璧勬枡
閰嶅
K12
鍐呭璧勬枡
10.2
涓�娆″嚱鏁板拰瀹冪殑鍥捐薄
涓�銆侀�夋嫨棰?/p>
1
锛庡嚱鏁?/p>
y=kx
鐨勫浘璞＄粡杩囩偣
P
锛?/p>
3
锛岋紞
1
锛夛紝鍒?/p>
k
鐨勫�间负锛?/p>
锛?/p>
A
锛?/p>
3
B
锛庯紞
3 C
锛?
3
1
D
锛庯紞
3
1
2
锛庝笅鍒楀嚱鏁颁腑锛屽浘璞＄粡杩囧師鐐圭殑涓猴紙
锛?/p>
A
锛?/p>
y=5x+1
B
锛?/p>
y=
锛?/p>
5x
锛?/p>
1
C
锛?/p>
y=
锛?
5
x
D
锛?/p>
y=
5
1
飥?/p>
x
3
锛庤嫢涓�娆″嚱鏁?/p>
y=kx+b
涓紝
y
闅?/p>
x
鐨勫澶ц�屽噺灏忥紝鍒欙紙
锛?/p>
A
锛?/p>
k
锛?/p>
0
锛?/p>
b
锛?/p>
0
B
锛?/p>
k
锛?/p>
0
锛?/p>
b
锛?/p>
0
C
锛?/p>
k
锛?/p>
0
锛?/p>
b
鈮?
D
锛?/p>
k
锛?/p>
0
锛?/p>
b
涓轰换鎰忔暟
4
锛庡綋
x=5
鏃朵竴娆″嚱鏁?/p>
y=2x+k
鍜?/p>
y=3kx
锛?/p>
4
鐨勫�肩浉鍚岋紝閭ｄ箞
k
鍜?/p>
y
鐨勫�煎垎鍒负锛?/p>
锛?/p>
A
锛?/p>
1
锛?/p>
11
B
锛庯紞
1
锛?/p>
9
C
锛?/p>
5
锛?/p>
11
D
锛?/p>
3
锛?/p>
3
5
锛庤嫢鐩寸嚎
y=kx+b
缁忚繃
A
锛?/p>
1
锛?/p>
0
锛夛紝
B
锛?/p>
0
锛?/p>
1
锛夛紝鍒欙紙
锛?/p>
A
锛?/p>
k=
锛?/p>
1
锛?/p>
b=
锛?/p>
1
B
锛?/p>
k=1
锛?/p>
b=1
C
锛?/p>
k=1
锛?/p>
b=
锛?/p>
1
D
锛?/p>
k=
锛?/p>
1
锛?/p>
b=1
浜屻�佸～绌洪
6
锛庢妸涓�涓嚱鏁扮殑鑷彉閲?/p>
x
涓庡搴旂殑鍥犲彉閲?/p>
y
鐨勫�煎垎鍒綔涓虹偣鐨?/p>
______
鍜?/p>
______
锛屽湪鐩磋鍧?/p>
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______
锛?/p>
7
锛庝綔鍑芥暟鍥捐薄鐨勪竴鑸楠や负
______
锛?/p>
______
锛?/p>
______
锛涗竴娆″嚱鏁扮殑鍥捐薄鏄竴鏉?/p>
______
锛?/p>
8
锛庣洿绾?/p>
y=3
锛?/p>
9x
涓?/p>
x
杞寸殑浜ょ偣鍧愭爣涓?/p>
______
锛屼笌
y
杞寸殑浜ょ偣鍧愭爣涓?/p>
______
锛?/p>
9
锛庝竴娆″嚱鏁?/p>
y=5kx
锛?/p>
5k
锛?/p>
3
锛屽綋
k=______
鏃讹紝鍥捐薄杩囧師鐐癸紱褰?/p>
k______
鏃讹紝
y
闅?/p>
x
鐨勫澶ц�?/p>
澧炲ぇ锛?/p>
10
锛庡湪涓�娆″嚱鏁?/p>
y=2x
锛?/p>
5
涓紝褰?/p>
x
鐢?/p>
3
澧炲ぇ鍒?/p>
4
鏃讹紝
y
鐨勫�肩敱
______
锛?/p>
褰?/p>
x
鐢憋紞
3
澧炲ぇ鍒帮紞
2
鏃讹紝
y
鐨勫�?/p>
______
锛?/p>
涓夈�佽В绛旈
11
锛庡湪鍚屼竴鐩磋鍧愭爣绯讳腑锛岀敾鍑哄嚱鏁?/p>
y=
5
1
x
锛?/p>
y=x
锛?/p>
y=5x
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x
杞存
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