鏁欏璇鹃
浜屾鍑芥暟缁煎悎闂鏂规硶涓庤В鏋?/p>
鏁欏杩囩▼
棰樺瀷涓�锛氫簩娆″嚱鏁颁腑鐨勬渶鍊奸棶棰橈紙閲嶇偣鎺屾彙锛?/p>
渚?/p>
1
锛氬鍥撅紝鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓紝鎶涚墿绾?/p>
y=ax
2
+bx+c
缁忚繃
A
锛堬梗
2
锛岋梗
4
锛?/p>
锛?/p>
O
锛?/p>
0
锛?/p>
0
锛?/p>
锛?/p>
B
锛?/p>
2
锛?/p>
0
锛変笁鐐癸紟
锛?/p>
1
锛夋眰鎶涚墿绾?/p>
y=ax
2
+bx+c
鐨勮В鏋愬紡锛?/p>
锛?/p>
2
锛夎嫢鐐?/p>
M
鏄鎶涚墿绾垮绉拌酱涓婄殑涓�鐐癸紝姹?/p>
AM+OM
鐨勬渶灏忓�硷紟
鏂规硶鎻愮偧锛?/p>
宸茬煡涓�鏉＄洿绾夸笂涓�鍔ㄧ偣
M
鍜岀洿绾垮悓渚т袱涓浐瀹氱偣
A
銆?/p>
B
锛?/p>
姹?/p>
AM+BM
鏈�灏忓�?/p>
鐨勯棶棰橈紝鎴戜滑鍙渶鍋氬嚭鐐?/p>
A
鍏充簬杩欐潯鐩寸嚎鐨勫绉扮偣
A
鈥?/p>
锛屽皢鐐?/p>
B
涓?/p>
A
鈥欒繛鎺ヨ捣鏉ヤ氦鐩寸嚎
涓庣偣
M
锛岄偅涔?/p>
A
鈥?/p>
B
灏辨槸
AM+BM
鐨勬渶灏忓�笺�傚悓鐞嗭紝鎴戜滑涔熷彲浠ュ仛鍑虹偣
B
鍏充簬杩欐潯鐩?/p>
绾跨殑瀵圭О鐐?/p>
B
鈥?/p>
锛屽皢鐐?/p>
A
涓?/p>
B
鈥欒繛鎺ヨ捣鏉ヤ氦鐩寸嚎涓庣偣
M
锛岄偅涔?/p>
AB
鈥欏氨鏄?/p>
AM+BM
鐨勬渶
灏忓�笺�傚簲鐢ㄧ殑瀹氱悊鏄細涓ょ偣涔嬮棿绾挎鏈�鐭�?/p>
A
A
B
B
M
鎴栬�?/p>
M
A
鈥?/p>
B
鈥?/p>