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yi ci han shu jian ce ti
Author(s): 
Pages: 83-84+63
Year: Issue:  Z2
Journal: School Journal of Mathematics

Keyword:  一次函数成正比例直线函数关系式函数表达式解析式已知函数时间会员卡函数图象;
Abstract: <正>一、细心填一填(要认真计算哦!) 1.已知直线y=21/2x+b经过(-2,21/2),则b=<sub><sub><sub>.2.已知y+6与3x+2成正比例,当x=1时,y=4,则当x=-1时,y=<sub><sub><sub>.3.已知关于x的函数y=(k+1)x+k2-1,k<sub><sub>时,它是一次函数;k<sub><sub>时,它是正比例函数.
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