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2021-07-01

一次函數(shù)的奇偶性是一次函數(shù)y=kx+b時(shí)b≠0,非奇非偶；b=0,奇函數(shù)。奇函數(shù)關(guān)于原點(diǎn)對(duì)稱，偶函數(shù)關(guān)于y軸對(duì)稱。首先推斷一個(gè)函數(shù)的奇偶性要先