\r\n" );
document.write( "y = a·sin[b(x+c)] + d or y = a·cos[b(x+c)] + d \r\n" );
document.write( "\r\n" );
document.write( "amplitude = |a|\r\n" );
document.write( "period =
\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" );
document.write( "\r\n" );
document.write( "---------------------------------------------------\r\n" );
document.write( "\r\n" );
document.write( "y = 5·cos(5t+13) − 4\r\n" );
document.write( "\r\n" );
document.write( "y = 5·cos[5(t+
)] - 5 \r\n" );
document.write( "\r\n" );
document.write( "a=5, b=5, c=
, d = -5 \r\n" );
document.write( "\r\n" );
document.write( "amplitude = |5| = 5\r\n" );
document.write( "period =
\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" );
document.write( "\r\n" );
document.write( "Edwin
\n" );
document.write( "