document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1096280>Question 1096280</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine the quadratic function f whose vertex is (2,-7) and y intercept is -3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #710718 by </B><A HREF=/tutors/aboutme.mpl?userid=sandeepvijay><B>sandeepvijay(8)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sandeepvijay><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=710718\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the quadratic function be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+x%5E2%2B%28b%2Fa%29x%2B%28c%2Fa%29 ALIGN=MIDDLE  ALT=\"y+=+x%5E2%2B%28b%2Fa%29x%2B%28c%2Fa%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since y-intercept is -3, therefore y = -3 for x = 0. Therefore,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3+=+0%5E2+%2B+%28b%2Fa%29%2A0+%2B+%28c%2Fa%29 ALIGN=MIDDLE  ALT=\"-3+=+0%5E2+%2B+%28b%2Fa%29%2A0+%2B+%28c%2Fa%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > => <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%2Fa+=+-3 ALIGN=MIDDLE  ALT=\"c%2Fa+=+-3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since (2,-7) is on the quadratic function (as this is the vertex), for x= 2, y must be equal to -7\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7+=+2%5E2%2B2%28b%2Fa%29-3 ALIGN=MIDDLE  ALT=\"-7+=+2%5E2%2B2%28b%2Fa%29-3\"   DISABLED_style= \"max-width:90%; height:auto;\" > => <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%2Fa+=+-4 ALIGN=MIDDLE  ALT=\"b%2Fa+=+-4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Therefore, the function is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+x%5E2+-4x+-3 ALIGN=MIDDLE  ALT=\"y+=+x%5E2+-4x+-3\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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