2. 外语
  3. The function/has the property that f(x)=f(x +1)for all numbers x. If f(4)= 17, what is the value of f(8)?

The function/has the property that f(x)=f(x +1)for all numbers x. If f(4)= 17, what is the value of f(8)?

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问题 The function/has the property that f(x)=f(x +1)for all numbers x. If f(4)= 17, what is the value of f(8)?
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答案17
解析 The property that f(x)=f(x+ 1)for all numbers x implies that f(4)=f(5), f(5)=f(6), f(6)=f(7), and f(7)=f(8). Therefore, since f(4)= 17, it Mows that f(8)= 17. Thus the correct answer is 17.
This explanation uses the following strategy.
Strategy 7: Find a Pattern
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