maths questions

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2007-08-15 7:05 pm

Suppose f(x)=kx-2. If f(2)=4, find the value of k.

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回答 (1)

[匿名]

2007-08-15 7:10 pm

✔ 最佳答案

f(x)= kx-2
f(2)= k(2)-2=4
2k=4+2
2k=6
k=3

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