document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=260270>Question 260270</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Graph the function y=4cos1/2theta </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #191819 by </B><A HREF=/tutors/aboutme.mpl?userid=jsmallt9><B>jsmallt9(3758)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jsmallt9><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=191819\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The normal amplitude of cos is 1. The 4 in front of cos means the amplitude will be 4.<br><BR>\n" );
document.write( "The normal period of cos is 360 degree (or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2pi ALIGN=MIDDLE  ALT=\"2pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians). The 1/2 in front of theta means that the period will be twice a long: 720 degrees (or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4pi ALIGN=MIDDLE  ALT=\"4pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians).<br><BR>\n" );
document.write( "There is no vertical or horizontal shift.<br><BR>\n" );
document.write( "Here are the graphs of both y = cos(theta) and your equation. I'll leave it up to you to figure out which is which. (Note: I do not how to get Algebra.com's graphing software to use degrees. So the graph below is in radians. You will have to convert the radians to degrees using the fact that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2pi ALIGN=MIDDLE  ALT=\"2pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > radians equals 360 degrees.)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+cos%28x%29%2C+4%2Acos%280.5x%29%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+cos%28x%29%2C+4%2Acos%280.5x%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );