題目: 若以x代表奇數或偶數,則變數x的值只有兩種可能, 即不是奇數就是偶數;若以y代表非0的整數, 而x與y之間的關係如下表所示,請問: (1)x是否為y的函數? (2)y是否為x的函數? x 奇數 偶數 y ......ˋ一3ˋ一1ˋ1ˋ3ˋ...... ......ˋ一4ˋ一2ˋ2ˋ4ˋ......
不懂題目的意思,不知道在問什麼? 大概初步的函數觀念了!
請數學高手指導,謝謝。
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