Question

函數(shù)的圖象恒過(guò)定點(diǎn),則點(diǎn)的坐標(biāo)是       ．

Answer 1

解析試題分析：因?yàn)楹瘮?shù)圖象恒過(guò)定點(diǎn)，所以令函數(shù)中，得，所以，所以函數(shù)圖象恒過(guò)定點(diǎn).
考點(diǎn)：本題主要考查對(duì)數(shù)型函數(shù)過(guò)定點(diǎn)問(wèn)題.
點(diǎn)評(píng)：對(duì)于此類問(wèn)題，學(xué)生要掌握住指數(shù)函數(shù)、對(duì)數(shù)函數(shù)恒過(guò)定點(diǎn)問(wèn)題，指數(shù)函數(shù)恒過(guò)定點(diǎn)，對(duì)數(shù)函數(shù)恒過(guò)定點(diǎn)，然后對(duì)于指數(shù)型函數(shù)和對(duì)數(shù)型函數(shù)，類比進(jìn)行即可.