正比例函数y=kx,当x=5时,y= - 2 ,则这个函数的解析式为
正比例函数y=kx,当x=5时,y= - 2 ,则这个函数的解析式为
数学人气:840 ℃时间:2020-03-31 02:20:42
优质解答
y=-0.4x;
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