题.(半小时内要)填空题,点A(3,-4)到原点的距离为( ) 不懂,解释为重点,到原点,若点(M,M+3)在函数Y=1\2X+2的图像上,则M=( )下面哪个点不在函数Y=-2X+3的图像上( )A.(-5,13) B.(0.
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