document.write( "Question 1132960: A periodic function has a period of 6. If f(3)=-1 and f(8)=5 Determine f(20) and f(-9)\r
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Algebra.Com's Answer #750130 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The number of  \"-9\"  is  12  units away from the number of  \"3\",  so there are exactly  TWO  PERIODS  distance between them.\r\n" );
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document.write( "Therefore, f(-9) = f(3) = -1.      ANSWER\r\n" );
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document.write( "The number of  \"20\"  is  12  units away from the number of  \"8\",  so there are exactly  TWO  PERIODS  distance between them.\r\n" );
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document.write( "Therefore, f(20) = f(8) = 5.       ANSWER\r\n" );
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