鏈�鏂颁汉鏁欑増鏁板绮惧搧鏁欏璧勬枡
鍏勾绾т笅瀛︽湡鏈熸湯鏁板妯℃嫙璇曞嵎
锛堝叏鍗锋弧鍒嗭細
120
鍒嗭紱鑰冭瘯鏃堕棿锛?/p>
120
鍒嗛挓锛?/p>
鐝骇锛?/p>
濮撳悕锛?/p>
寰楀垎锛?/p>
涓�
銆?/p>
閫夋嫨棰橈紙姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
24
鍒嗭級
1.
涓嬪垪浜屾鏍瑰紡鏄渶绠�浜屾鏍瑰紡鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
8
B
锛?/p>
1.5
C
锛?/p>
5
D
锛?
1
2
2.
鍦?/p>
鈻?/p>
ABCD
涓紝鑻モ垹
A
:
鈭?/p>
B
=5
:
4
锛屽垯鈭?/p>
C
鐨勫害鏁颁负锛?/p>
锛?/p>
A
锛?/p>
80掳
B
锛?/p>
120掳
C
锛?/p>
100掳
D
锛?/p>
110掳
3.
宸茬煡鐐癸紙
-2
锛?/p>
y
1
锛?/p>
锛?/p>
锛?/p>
-1
锛?/p>
y
2
锛?/p>
锛?/p>
锛?/p>
1
锛?/p>
y
3
锛夐兘鍦ㄧ洿绾?/p>
y=
锛?/p>
3x
锛?/p>
b
涓婏紝鍒?/p>
y
1
锛?/p>
y
2
锛?/p>
y
3
鐨勫ぇ灏忓叧绯绘槸锛?/p>
锛?/p>
A
锛?/p>
y
1
>y
2
>y
3
B
锛?/p>
y
1
<y
2
<y
3
C
锛?/p>
y
3
>y
1
>y
2
D
锛?/p>
y
3
<y
1
<y
2
4.
宸茬煡涓�娆″嚱鏁?/p>
y
=
kx
+
b
鐨勫浘璞″鍥炬墍绀猴紝褰?/p>
y
<
-
2
鏃讹紝
x
鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A
锛?/p>
x
>0
B
锛?/p>
x
<0
C
锛?/p>
-
2<
x
<0
D
锛?/p>
x
<
-
2
y
x
O
-
2
1
A
B
C
E
D
S
1
S
2
S
3
A
C
B
绗?/p>
4
棰樺浘
绗?/p>
5
棰樺浘
绗?/p>
6
棰樺浘
5.
濡傚浘锛屽湪鐢卞崟浣嶆鏂瑰舰缁勬垚鐨勭綉鏍间腑鏍囧嚭
AB
锛?/p>
CD
锛?/p>
DE
锛?/p>
AE
鍥涙潯绾挎锛屽叾涓兘鏋勬垚涓�涓洿瑙掍笁
瑙掑舰涓夎竟鐨勭嚎娈垫槸锛?/p>
锛?/p>
A
锛?/p>
AB
锛?/p>
CD
锛?/p>
AE
锛?/p>
B
锛?/p>
AE
锛?/p>
ED
锛?/p>
CD
锛?/p>
C
锛?/p>
AE
锛?/p>
ED
锛?/p>
AB
锛?/p>
D
锛?/p>
AB
锛?/p>
CD
锛?/p>
ED
6.
濡傚浘锛屽凡鐭?/p>
S
1
锛?/p>
S
2
鍜?/p>
S
3
鍒嗗埆鏄?/p>
Rt
鈻?/p>
ABC
鐨勬枩杈?/p>
AB
鍙婄洿瑙掕竟
BC
鍜?/p>
AC
涓虹洿寰勭殑鍗婂渾鐨勯潰绉紝鍒?/p>
S
1
锛?/p>
S
2
鍜?/p>
S
3
婊¤冻鐨勫叧绯诲紡涓猴紙
锛?/p>
A
锛?/p>
S
1
<
S
2
+
S
3
B
锛?/p>
S
1
=
S
2
+
S
3
C
锛?/p>
S
1
>
S
2
+
S
3
D
锛?/p>
S
1
=
S
2
鈭?/p>
S
3
7.
涓轰簡瑙ｆ煇灏忓尯鈥滃叏姘戝仴韬�濇椿鍔ㄧ殑寮�灞曟儏鍐碉紝闅忔満瀵瑰眳浣忓湪璇ュ皬鍖虹殑
40
鍚嶅眳姘戜竴鍛ㄧ殑浣撹偛閿荤偧鏃?/p>
闂磋繘琛屼簡缁熻锛岀粨鏋滃涓嬭〃锛?/p>
閿荤偧鏃堕棿锛堝皬鏃讹級
3
4
5
6
7
浜烘暟锛堜汉锛?/p>
6
13
14
5
2
杩?/p>
40
鍚嶅眳姘戜竴鍛ㄤ綋鑲查敾鐐兼椂闂寸殑涓綅鏁版槸锛?/p>
锛夊皬鏃讹紟
A
锛?/p>
4
B
锛?/p>
4.5
C
锛?/p>
5
D
锛?/p>
14
8.
宸茬煡
A
(
-
1
锛?/p>
1)
锛?/p>
B
(2
锛?/p>
3)
锛岃嫢瑕佸湪
x
杞翠笂鎵句竴鐐?/p>
P
锛屼娇
AP
+
BP
鏈�鐭紝姝ゆ椂鐐?/p>
P
鐨勫潗鏍囦负锛?/p>
锛?/p>
A
锛?/p>
(0
锛?/p>
0)
锛?/p>
B
锛?/p>
(
5
2
锛?/p>
0)
锛?/p>
C
锛?/p>
(
-
1
锛?/p>
0)
锛?/p>
D
锛?/p>
(
1
4
飥?
锛?/p>
0)
銆?/p>
浜屻�佸～绌洪锛堟瘡灏忛
3
鍒嗭紝鍏?/p>
24
鍒嗭級
9.
鑻?/p>
y
x
x
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
2
3
3
2
2
锛屽垯
y
x
鐨勫�间负
_________
銆?/p>
10.
鑻ヤ竴娆″嚱鏁?/p>
(
2)
(
2)
y
a
x
a
飥?/p>
飥?/p>
飥?/p>
飥?/p>
涓嶇粡杩囩涓夎薄闄愶紝鍒?/p>
a
鐨勫彇鍊艰寖鍥存槸
銆?/p>
11.
涓�娆″嚱鏁?/p>
y=kx+b
涓?/p>
y=2x+1
骞宠锛屼笖缁忚繃鐐?/p>
(-3
锛?/p>
4)
锛屽垯琛ㄨ揪寮忎负
銆?/p>
12.
濡傚浘锛屽湪鈻?/p>
ABC
涓紝鈭?/p>
A
=
鈭?/p>
B
锛?/p>
D
鏄?/p>
AB
涓婁换鎰忎竴鐐癸紝
DE
鈭?/p>
BC
锛?/p>
DF
鈭?/p>
AC
锛?/p>
AC
=4cm
锛屽垯鍥涜竟褰?/p>
DECF
鐨勫懆闀夸负
____________
cm
銆?/p>
A
B
C
E
D
F
F
C
B
A
E
D
绗?/p>
12
棰樺浘
绗?/p>
14
棰樺浘
绗?/p>
15
棰樺浘
13.
鍦ㄢ柍
ABC
涓?/p>
AB
锛?/p>
15
锛?/p>
AC
锛?/p>
13
锛岄珮
AD
锛?/p>
12
锛屽垯鈻?/p>
ABC
鐨勫懆闀夸负
銆?/p>
14.
濡傚浘锛屽鏋滃ぇ姝ｆ柟褰㈢殑闈㈢Н鏄?/p>
13
锛屽皬姝ｆ柟褰㈢殑闈㈢Н鏄?/p>
1
锛岀洿瑙掍笁瑙掑舰鐨勪袱鐩磋杈瑰垎鍒负
a
锛?/p>
b
锛?/p>
閭ｄ箞
(
a
+
b
)
2
鐨勫�兼槸
_______
銆?/p>
15.
濡傚浘锛屽湪
鈻?/p>
ABCD
涓紝鐐?/p>
E
鍦ㄨ竟
AD
涓婏紝浠?/p>
BE
涓烘姌鐥曪紝灏嗏柍
ABE
鍚戜笂
缈绘姌锛岀偣
A
姝ｅソ钀藉湪
CD
涓婄殑鐐?/p>
F
澶勶紝鑻モ柍
FDE
鐨勫懆闀夸负
8
锛屸柍
FCB
鐨勫懆
闀夸负
32
锛屽垯
FC
鐨勯暱涓?/p>
___________
銆?/p>
16.
鐩寸嚎
1
1
:
l
y
k
x
b
飥?/p>
飥?/p>
涓庣洿绾?/p>
2
2
:
l
y
k
x
飥?/p>
鍦ㄥ悓涓�骞抽潰鐩磋鍧愭爣绯讳腑鐨勫浘璞★紝
濡?/p>
鍥炬墍绀猴紝鍒欏叧浜?/p>
x
鐨勪笉绛夊紡
2
1
k
x
k
x
b
飥?/p>
飥?/p>
鐨勮В闆嗕负
銆?/p>
涓夈�佽В绛旈锛堟湰澶ч鍏?/p>
72
鍒嗭級
17.
锛?/p>
8
鍒嗭級璁＄畻锛?/p>
飥?/p>
飥?/p>
飥?/p>
飥?
2
3
27
3
3
3
3
0
2
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飦?/p>
18.
锛?/p>
8
鍒嗭級鍖栫畝姹傚�硷細
1
2
,
2
2
1
2
1
2
2
2
飥?/p>
飥?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
飥?/p>
a
a
a
a
a
a
a
a
鍏朵腑
銆?/p>
l
2
l
1
3
-1
O
y
x