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 #782747 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=782747\">put this solution on YOUR website!</A><BR><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" );
document.write( "\n" );
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??<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">A HORIZONTAL/PHASE SHIFT is calculated as: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=abs%28c%2Fb%29 ALIGN=MIDDLE  ALT=\"abs%28c%2Fb%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. With c being <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-+pi%2F2 ALIGN=MIDDLE  ALT=\"-+pi%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and b being 3 (coefficient of \"x\"), <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=abs%28c%2Fb%29 ALIGN=MIDDLE  ALT=\"abs%28c%2Fb%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > becomes: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28matrix%281%2C5%2C+abs%28%28-+pi%2F2%29%2F3%29%2C+%22=%22%2C+abs%28%28-+pi%2F2%29+%2A+%281%2F3%29%29%2C+%22=%22%2C+highlight%28highlight%28-+pi%2F6%29%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "ACCEPT NO other answer, especially the one that claims that it's <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;\" >- She's ALMOST ALWAYS WRONG!! </SPAN>\n" );
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