已知函数f(x)＝2x＋1(1≤x≤3)，则( )_刷题宝

题干

已知函数f(x)＝2x＋1(1≤x≤3)，则( )

A：f(x－1)＝2x＋2(0≤x≤2)

B：f(x－1)＝2x－1(2≤x≤4)

C：f(x－1)＝2x－2(0≤x≤2)

D：f(x－1)＝－2x＋1(2≤x≤4)

上一题下一题 0.0难度选择题更新时间:2018-05-23 10:46:57

答案(点此获取答案解析）

B

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