某二次函数的图像经过点(0,-1),(-2,0)和(4,0),则该二次函数的表达式为
某二次函数的图像经过点(0,-1),(-2,0)和(4,0),则该二次函数的表达式为
数学人气:550 ℃时间:2019-11-23 02:05:13
优质解答
y=1/8xfang-1/4x-1
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