document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=171418>Question 171418</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help with solving and graphing one cycle of y= 2sin(3x-pi) and y = -3 cos(1/2x)-4.\r<BR>\n" );
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document.write( "So far for the first question I have gotten really mixed up but I got <BR>\n" );
document.write( "3x-pi =o<BR>\n" );
document.write( "x=pi/3<BR>\n" );
document.write( "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 #126614 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=126614\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I need help with solving and graphing one cycle of y= 2sin(3x-pi) and y = -3 cos(1/2x)-4. <BR>\n" );
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document.write( "y= 2sin(3x-pi)<BR>\n" );
document.write( "Period = (2/3)pi<BR>\n" );
document.write( "That tells you the distance from peak to peak.<BR>\n" );
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document.write( "Amplitude = 2<BR>\n" );
document.write( "That tells you the height of each peak<BR>\n" );
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document.write( "x-intercept<BR>\n" );
document.write( "2sin(3x-pi) = 0<BR>\n" );
document.write( "sin(3x-pi) = 0<BR>\n" );
document.write( "3x-pi = 0<BR>\n" );
document.write( "x = pi/3<BR>\n" );
document.write( "Mark that point on the x-axis.<BR>\n" );
document.write( "It is the point where the curve crosses the x-axis<BR>\n" );
document.write( "and it is the middle of one period of the curve.<BR>\n" );
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document.write( "Maybe with that info you can sketch the period centered at pi/3<BR>\n" );
document.write( "and then duplicate that period to the left and to the right.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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