2019-2020
骞翠節骞寸骇涓嬪唽銆婁簩娆″嚱鏁扮殑搴旂敤銆嬪悓姝ョ粌涔犻闄勭瓟妗?/p>
涓�銆佸熀纭�璁粌
1
锛?/p>
鐢ㄩ厤鏂规硶灏嗕簩娆″嚱鏁?/p>
3
4
2
飥?/p>
飥?/p>
飥?/p>
x
x
y
鍐欐垚
k
h
x
a
y
飥?/p>
飥?/p>
飥?/p>
2
)
(
鐨勫舰寮忔槸
_______________,
鍏堕《鐐瑰潗鏍囨槸
_________
锛屽綋
x
锛?/p>
_____
鏃讹紝
y
鏈夋渶
____
鍊兼槸
_______
銆?/p>
2
锛庤嫢鏌愮鍟嗗搧鐨勫埄娑?/p>
y
锛堝厓锛変笌鍞环
x
锛堝厓锛夌殑鍑芥暟鍏崇郴寮忔槸
6500
260
2
2
飥?/p>
飥?/p>
飥?/p>
飥?/p>
x
x
y
锛?/p>
鎶婂畠鍖栨垚椤剁偣寮忎负
_____________
銆傚綋鍞环
x
锛?/p>
__________
鍏冩椂锛屽晢鍝佺殑鍒╂鼎
y
鏈夋渶澶у�?/p>
_________
鍏冦�?/p>
3
锛庣洿绾?/p>
y=x+2
涓庢姏鐗╃嚎
y=x
2
+2x
鐨勪氦鐐瑰潗鏍囦负
___________
锛?/p>
4
锛庝簩娆″嚱鏁?/p>
c
x
x
y
飥?/p>
飥?/p>
飥?/p>
8
2
鐨勬渶灏忓�间负
0
锛岄偅涔?/p>
c
鐨勫�肩瓑浜?/p>
锛?/p>
锛?/p>
.
A
锛?/p>
4 B
锛?/p>
8 C
锛庯紞
4 D
锛?/p>
16
5
锛?/p>
鐢ㄩ暱涓?/p>
8m
鐨勯摑鍚堥噾鍒舵垚濡傚浘
1
鎵�绀虹殑鐭╁舰绐楁锛?/p>
浣跨獥鎴风殑閫忓厜闈㈢Н鏈�澶э紝
閭ｄ箞绐楁埛鐨勬渶
澶ч潰绉槸锛?/p>
锛?/p>
A
锛?
25
64
m
2
B
锛?/p>
3
4
m
2
C
锛?/p>
3
8
m
2
D
锛?/p>
4m
2
6
锛庡鍥?/p>
2
锛岀瓑鑵颁笁瑙掑舰
ABC
锛堚垹
C=90
掳锛夌殑鐩磋杈归暱涓庢鏂瑰舰
MNPQ
鐨勮竟闀垮潎涓?/p>
4cm
銆?/p>
CA
涓?/p>
MN
鍦ㄧ洿瑙?/p>
l
涓娿�?/p>
寮�濮嬫椂
A
鐐逛笌
M
鐐归噸鍚堬紝
璁?/p>
螖
ABC
鍚戝彸骞崇Щ锛?/p>
鐩村埌
C
鐐逛笌
N
鐐归噸鍚堟椂涓烘銆?
璁?/p>
螖
ABC
涓庢鏂瑰舰
MNPQ
鐨勯噸鍙犻儴鍒嗭紙鍥句腑闃村奖閮ㄥ垎锛夌殑闈㈢Н涓?/p>
y
cm
2
锛?/p>
MA
鐨勯暱搴︿负
x
cm
锛?/p>
鍒?/p>
y
涓?/p>
x
涔嬮棿鐨勫嚱鏁板叧绯诲紡澶ц嚧鏄紙
锛?/p>
浜屻�佺患鍚堝簲鐢?/p>
7
锛?/p>
鏌愭梾绀炬湁瀹㈡埧
120
闂达紝
姣忛棿瀹㈡埧鐨勬棩绉熼噾涓?/p>
50
鍏冿紝
姣忓ぉ閮藉婊★紝
鏃呯ぞ瑁呬慨鍚庤鎻愰珮绉熼噾锛?/p>
缁忓競鍦鸿皟鏌ワ紝濡傛灉涓�闂村鎴跨殑鏃ョ閲戝鍔?/p>
5
鍏冿紝鍒欏鎴挎瘡澶╁嚭绉熶細鍑忓皯
6
闂达紝涓嶈�冭檻鍏?/p>
瀹冨洜绱狅紝鏃呯ぞ灏嗘瘡闂村鎴跨殑鏃ョ閲戞彁楂樺埌澶氬皯鍏冩椂锛屽鎴挎棩绉熼噾鐨勬�绘敹鍏ユ渶楂橈紵姣旇淇?/p>
鍓嶇殑鏃ョ閲戞�绘敹鍏ュ鍔犲灏戝厓锛?/p>
C
M
A
N
Q
P
B
鍥?/p>
2
鍥?/p>
1