鍒濅簩鏁板涓�娆″嚱鏁板悓姝ョ粌涔犻
绗竴璇炬椂
鈽嗘垜鑳介�?/p>
1
锛庝笅鍒楄娉曟纭殑鏄紙
锛?/p>
A
锛庢姣斾緥鍑芥暟鏄竴娆″嚱鏁?/p>
B
锛庝竴娆″嚱鏁版槸姝ｆ瘮渚嬪嚱鏁?/p>
C
锛庢姣斾緥鍑芥暟涓嶆槸涓�娆″嚱鏁?/p>
D
锛庝笉鏄姣斾緥鍑芥暟灏变笉鏄竴娆″嚱鏁?/p>
2
锛庝笅鍒楀嚱鏁颁腑锛?/p>
y
鏄?/p>
x
鐨勪竴娆″嚱鏁扮殑鏄紙
锛?/p>
A
锛?/p>
y=-3x+5 B
锛?/p>
y=-3x
2
C
锛?/p>
y=
1
x
D
锛?/p>
y=2
x
3
锛庡凡鐭ョ瓑鑵颁笁瑙掑舰鐨勫懆闀夸负
20cm
锛屽皢搴曡竟
y
锛?/p>
cm
锛夎〃绀烘垚鑵伴暱
x
锛?/p>
cm
锛?/p>
鈥?/p>
鐨勫嚱鏁板叧绯诲紡鏄?/p>
y=20-2x
锛屽垯鍏惰嚜鍙橀噺鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A
锛?/p>
0<x<10 B
锛?/p>
5<x<10 C
锛?/p>
x>0 D
锛庝竴鍒囧疄鏁?/p>
4
锛庝竴娆″嚱鏁?/p>
y=kx+b
婊¤冻
x=0
鏃讹紝
y=-1
锛?/p>
x=1
鏃讹紝
y=1
锛屽垯杩欎釜涓�娆″嚱鏁版槸锛?/p>
鈥?/p>
锛?/p>
A
锛?/p>
y=2x+1 B
锛?/p>
y=-2x+1 C
锛?/p>
y=2x-1 D
锛?/p>
y=-2x-1
鈽嗘垜鑳藉～
5
锛庡凡鐭ュ嚱鏁?/p>
y=
锛?/p>
k-1
锛?/p>
x+
k
2
-1
锛屽綋
k________
鏃讹紝瀹冩槸涓�娆″嚱鏁帮紝褰?/p>
k=_______鈥?/p>
鏃讹紝瀹冩槸
姝ｆ瘮渚嬪嚱鏁帮紟
6
锛庝粠鐢插湴鍚戜箼鍦版墦闀块�旂數璇濓紝鎸夋椂闂存敹璐癸紝
3
鍒嗛挓鍐呮敹璐?/p>
2.4
鍏冿紝姣忓姞
1
鍒嗛挓鍔犳敹
1
鍏冿紝
鑻ユ椂闂?/p>
t
鈮?/p>
3
锛堝垎锛夋椂锛岀數璇濊垂
y
锛堝厓锛変笌
t
涔嬮棿鐨勫嚱鏁板叧绯诲紡鏄?/p>
_________
锛?/p>
7
锛庡凡鐭?/p>
A
銆?/p>
B
銆?/p>
C
鏄竴鏉￠搧璺嚎锛堢洿绾匡級涓婇『娆′笁涓珯锛?/p>
A
銆?/p>
B
涓ょ珯鐩歌窛
100鈥?/p>
鍗冪背锛岀幇鏈変竴
鍒楃伀杞︿粠
B
绔欏嚭鍙戯紝
浠?/p>
75
鍗冪背
/
鏃剁殑閫熷害鍚?/p>
C
绔欓┒鍘伙紝
璁?/p>
x
锛?/p>
鈥?/p>
鏃讹級
琛ㄧず鐏溅琛岄┒鐨勬椂闂达紝
y
锛堝崈绫筹級琛ㄧず鐏溅涓?/p>
A
绔欑殑璺濈锛屽垯
y
涓?/p>
x
鐨勫叧绯诲紡鏄?/p>
_________
锛?/p>
鈽嗘垜鑳界瓟
8
锛庢煇鐢典俊鍏徃鐨勪竴绉嶉�氳瘽鏀惰垂鏍囧噯鏄細涓嶇閫氳瘽鏃堕棿澶氶暱锛?/p>
鈥?/p>
姣忛儴鎵嬫満姣忔湀蹇呴』缂存湀绉熻垂
50
鍏冿紝
鍙﹀锛?/p>
姣忛�氳瘽
1
鍒嗙即璐?/p>
0.25
鍏冿紟
锛?/p>
1
锛?/p>
鍐欏嚭姣忔湀搴旂即璐圭敤
y
锛堝厓锛?/p>
涓庨�氳瘽鏃堕棿
x
锛堝垎锛?/p>
涔嬮棿鐨勫叧绯诲紡锛?/p>
锛?/p>
2
锛夋煇鐢ㄦ埛鏈湀閫氳瘽
120
鍒嗛挓锛屼粬鐨勮垂鐢ㄦ槸澶氬皯鍏冿紵
鈥?/p>
锛?/p>
3
锛夎嫢鏌愮敤鎴锋湰
鏈堥浜や簡
200
鍏冿紝閭ｄ箞璇ョ敤鎴锋湰鏈堝彲浠ラ�氳瘽澶氶暱鏃堕棿锛?/p>
9
锛庡皬鏄庣敤鐨勭粌涔犳湰鍙湪鐢层�佷箼涓や釜鍟嗗簵鍐呬拱鍒帮紝
鈥?/p>
宸茬煡涓や釜鍟嗗簵鐨勬爣浠烽兘鏄瘡涓粌涔犳湰
1
鍏冿紝浣嗙敳鍟嗗簵鐨勪紭鎯犳潯浠舵槸锛氳喘涔?/p>
10鈥?/p>
鏈互涓婏紝
鈥?/p>
浠庣
11鈥?/p>
鏈紑濮嬫寜鏍囦环鐨?/p>
70%
鍗栵紱涔欏晢搴?