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Author:
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Volume:
Issue:
zen yang que ding yi ci han shu biao da shi
Author(s):
LIN Weijie
Pages:
30
-
31
Year:
2008
Issue:
Z1
Journal:
School Journal of Mathematics
Keyword:
函数表达式
;
一次函数
;
确定方法
;
函数图象
;
取值范围
;
自变量
;
待定参数
;
函数关系式
;
举例说明
;
思路方法
;
Abstract:
<正>一次函数表达式y=kx+b(k≠0)中有两个待定参数k和b,确定了它们就确定了一个一次函数表达式,故一般需要两个独立的条件才能确定一次函数表达式.现举例说明确定一次函数表达式的方法,供同学们参考.
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