document.write( "Question 811158: Suppose y=5cos(5t+13)-4. In my answer i am suppose to answer with pi. what is the phase shift and horizontal shift \n" ); document.write( "
Algebra.Com's Answer #488632 by Edwin McCravy(20060)\"\" \"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 = \"2pi%2Fb\"\r\n" );
document.write( "horizontal shift = |c| right if c negative, left if c positive\r\n" );
document.write( "vertical shift = |d| up if d positive, down if d negative\r\n" );
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document.write( "y = 5·cos(5t+13) − 4\r\n" );
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document.write( "y = 5·cos[5(t+\"13%2F5\")] - 5 \r\n" );
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document.write( "a=5, b=5, c=\"13%2F5\", d = -5  \r\n" );
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document.write( "amplitude = |5| = 5\r\n" );
document.write( "period = \"2pi%2F5\"\r\n" );
document.write( "horizontal shift = |13/5| = 13/5 left since c positive\r\n" );
document.write( "vertical shift = |-5| = 5 down since d negative\r\n" );
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document.write( "Edwin
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