document.write( "Question 882509: Determine the phase shift for y=1/2cos(5piex-3) \n" ); document.write( "
Algebra.Com's Answer #532898 by Edwin McCravy(20081)\"\" \"About 
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document.write( "y = a·sin[b(x+c)] + d  or y = a·cos[b(x+c)] + d   \r\n" );
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document.write( "amplitude = |a|\r\n" );
document.write( "period = \r\n" );
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document.write( "Factor out \"5pi\"\r\n" );
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document.write( "compare to\r\n" );
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document.write( "y = a·cos[b(x+c)] + d  \r\n" );
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document.write( "\"matrix%281%2C4%2C++++a=1%2F2%2C+b=5pi%2C+c=3%2F5pi%2C+d=0+%29\"\r\n" );
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document.write( "amplitude = |a| = \"abs%281%2F2%29%7C%7C%7C+=+%7B%7B%7B1%2F2\"\r\n" );
document.write( "period = \"2pi%2Fb\" = \"%282pi%29%2F%285pi%29=2%2F5\"\r\n" );
document.write( "phase shift = |c| = \"abs%28-3%2F%285pi%29%29\" right since negative\r\n" );
document.write( "vertical shift = |d| = 0 so no vertical shift\r\n" );
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document.write( "Edwin
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