問題詳情
4. 由二次函數 y = (x − 9)2 + 11 可知,當 x =__________ 時,二次函數有最_________ 值(填「大」或「小」),其值為_________ 。三個空格依序應填入下列哪一個選項?
(A) -9,大,11
(B) -9,小,11
(C) 9,大,11
(D) 9,小,11
參考答案
無參考答案
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