document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=870140>Question 870140</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Graph one period of the graph, and state the Amplitude, period, and phase shift(if any). Problem y=3cos(x-pi/2)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #524690 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=524690\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Graph one period of the graph, and state the Amplitude, period, and phase shift(if any). Problem y=3cos(x-pi/2)<BR>\n" );
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document.write( "Form of equation for cos function: Acos(Bx-C), A=amplitude, Period=2&#960;/B, Phase shift=C/B<BR>\n" );
document.write( "For given cos function: y=3cos(x-pi/2)<BR>\n" );
document.write( "Amplitude=3<BR>\n" );
document.write( "B=1<BR>\n" );
document.write( "Period=2&#960;/B=2&#960;<BR>\n" );
document.write( "1/4 Period=&#960;/2<BR>\n" );
document.write( "C=&#960;/2<BR>\n" );
document.write( "Phase shift=C/B=(&#960;/2)/1=&#960;/2(shift to the right)<BR>\n" );
document.write( "..<BR>\n" );
document.write( "coordinates of basic cos function for one period:<BR>\n" );
document.write( "(0, 1), (&#960;/2, 0), (&#960;, -1), (3&#960;/2,0), (2&#960;, 1)<BR>\n" );
document.write( "..<BR>\n" );
document.write( "coordinates of given cos function for one period: (with amplitude=3, phase shift &#960;/2 to the right)<BR>\n" );
document.write( "(0,0), (&#960;/2, 3), (&#960;, 0), (3&#960;/2,-3), (2&#960;, 0)<BR>\n" );
document.write( "See graph below:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+300%2C+-1%2C+10%2C+-6%2C+6%2C3cos%28x-pi%2F2%29%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+300%2C+-1%2C+10%2C+-6%2C+6%2C3cos%28x-pi%2F2%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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