若函数y=f (x) (f (x)不恒为零)的图象与y=-f (x)的图象关于原点对称,.若函数y=f (x) (f (x)不恒为零)的图象与y=-f (x)的图象关于原点对称,则y=f (x) ( B )A.是奇函数而不是偶函数 B.是偶函数
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![若函数y=f (x) (f (x)不恒为零)的图象与y=-f (x)的图象关于原点对称,.若函数y=f (x) (f (x)不恒为零)的图象与y=-f (x)的图象关于原点对称,则y=f (x) ( B )A.是奇函数而不是偶函数 B.是偶函数](/uploads/image/z/8840819-11-9.jpg?t=%E8%8B%A5%E5%87%BD%E6%95%B0y%3Df+%28x%29+%28f+%28x%29%E4%B8%8D%E6%81%92%E4%B8%BA%E9%9B%B6%29%E7%9A%84%E5%9B%BE%E8%B1%A1%E4%B8%8Ey%3D-f+%28x%29%E7%9A%84%E5%9B%BE%E8%B1%A1%E5%85%B3%E4%BA%8E%E5%8E%9F%E7%82%B9%E5%AF%B9%E7%A7%B0%2C%EF%BC%8E%E8%8B%A5%E5%87%BD%E6%95%B0y%EF%BC%9Df+%28x%29+%28f+%28x%29%E4%B8%8D%E6%81%92%E4%B8%BA%E9%9B%B6%29%E7%9A%84%E5%9B%BE%E8%B1%A1%E4%B8%8Ey%EF%BC%9D%EF%BC%8Df+%28x%29%E7%9A%84%E5%9B%BE%E8%B1%A1%E5%85%B3%E4%BA%8E%E5%8E%9F%E7%82%B9%E5%AF%B9%E7%A7%B0%2C%E5%88%99y%EF%BC%9Df+%28x%29+%EF%BC%88+B+%EF%BC%89A%EF%BC%8E%E6%98%AF%E5%A5%87%E5%87%BD%E6%95%B0%E8%80%8C%E4%B8%8D%E6%98%AF%E5%81%B6%E5%87%BD%E6%95%B0+B%EF%BC%8E%E6%98%AF%E5%81%B6%E5%87%BD%E6%95%B0)
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