赞同0|评论 2011-07-28 15:16a649562365| 二级设函数的通式 f(x)=a的X次方 将点带入上式解出a 得到函数式 再把X带成4求解就行了 手打 求采纳。
赞同0|评论 2011-07-28 15:54冰激凌的夏季| 二级当x=3时,y=根号3,代入 算式是y=a^x 算出a的值,再当x=4时,算出y的值就是答案了 内容来自网友回答
1 There is sth wrong with my knee. _ _ _ with my knee. 2 I've got a sharp pain in my left leg. My left leg _ _ . 3 The doctor advise that she should not have greasy food. The doctor advise _ _ _ hav