document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159663>Question 1159663</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the amplitude, the period, and the phase shift.<BR>\n" );
document.write( "y = 5 sin(3x − π/2)\r<BR>\n" );
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document.write( "I got 5 for amplitude, 2pi/3 for period, and 3pi/2 for phase shift. The amplitude and period are right but phase shift is wrong, why?? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #782745 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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/cgi-bin/show-face.mpl?user=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=782745\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> phase shift =  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-%28%28pi%2F2%29%29%2F3+=+-pi%2F6+ ALIGN=MIDDLE  ALT=\"+-%28%28pi%2F2%29%29%2F3+=+-pi%2F6+\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Because it is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-pi%2F6 ALIGN=MIDDLE  ALT=\"-pi%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > it LAGS the unshifted <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5sin%283x%29+ ALIGN=MIDDLE  ALT=\"+5sin%283x%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
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document.write( "      <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=math_helper&illustration_name=lagging_sine\">. </SPAN>\n" );
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