document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=16693>Question 16693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help with the following:\r<BR>\n" );
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document.write( "If g(x) = x ^2 - 3x,  find what the square root of (g(-1) ) is.\r<BR>\n" );
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document.write( "I started with:<BR>\n" );
document.write( "the square root of g times -1 = the square root of 1^2  - 3 times the square root of -1<BR>\n" );
document.write( "the square root of g times -1 = 1- 3, times the square root of -1<BR>\n" );
document.write( "the square root of g times -1 = -2, times the square root of -1\r<BR>\n" );
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document.write( "the teacher's answer is 2 and I'm not sure how he got it and if it would be<BR>\n" );
document.write( "\"the square root of g times -1\" = 2.\r<BR>\n" );
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document.write( "Please help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #8148 by </B><A HREF=/tutors/aboutme.mpl?userid=bam878s><B>bam878s(77)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bam878s><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=8148\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First of all you're interpreting the problem wrong.  g(-1) doesn't mean g * -1.  g is a function so it depends on certain parameter x.  We know g(x) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+-+3x ALIGN=MIDDLE  ALT=\"x%5E2+-+3x\"   DISABLED_style= \"max-width:90%; height:auto;\" > so to find g (-1) you simply put the value of x = -1 into the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%5E2+-+3%28-1%29 ALIGN=MIDDLE  ALT=\"%28-1%29%5E2+-+3%28-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1 + 3 = 4.<BR>\n" );
document.write( "Now you need to find <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28g%28-1%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28g%28-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >} which is simply <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%284%29 ALIGN=MIDDLE  ALT=\"sqrt%284%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 2.\r<BR>\n" );
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document.write( "Hope this helps. </SPAN>\n" );
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