document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=420692>Question 420692</A>: <I><SPAN STYLE=\"word-break: break-all;\"> write an equation of the cos function with an amplitude of 4, period of 6, phase shift -pi, and verticle shift of -5. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #293940 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=293940\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> write an equation of the cos function with an amplitude of 4, period of 6, phase shift -pi, and verticle shift of -5.\r<BR>\n" );
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document.write( "Basic equation of cos function: y=ACos(Bx-C)<BR>\n" );
document.write( "A=amplitude<BR>\n" );
document.write( "B=coefficient of x<BR>\n" );
document.write( "Period=2pi/B<BR>\n" );
document.write( "Phase shift=C/B<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Given amplitude=4=A<BR>\n" );
document.write( "Given Period = 6=2pi/B<BR>\n" );
document.write( "B=2pi/6=pi/3<BR>\n" );
document.write( "Given phase shift=-pi=C/B<BR>\n" );
document.write( "C=B*-pi=(pi/3)*-pi=-pi^2/3<BR>\n" );
document.write( "Given vertical shift=-5 (Curve is bumped down 5 units)<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "y=4Cos(pi/3x+pi^2/3)-5 </SPAN>\n" );
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