Suppose that the function T has period 7 and that T(0)=3.(adsbygoogle = window.adsbygoogle || []).push({});

Explain why T(-30)=T(40)?

Is it normal that teacher just tells you to read stuff in book and then do your homework, without explaining it? She was "teaching" some stupid stuff about graphing f(x)=(x-1)^2 + 2, which they teach you in Alg I and then gives you questions about periodic equations. Last two days one girl and me were the only ones to be able to do the homework.

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# Homework Help: I need help

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