document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=425396>Question 425396</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the vertex and intercepts for the quadratic function and sketch the graph.\r<BR>\n" );
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document.write( "y=x^2+2x-24\r<BR>\n" );
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document.write( "My thoughts:\r<BR>\n" );
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document.write( "0=x^2+2x-24....but then I'm not sure where I go from here. And I know once I find x, I need to find y? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #296232 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=296232\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the general vertex form of a quadratic is ___ y = a(x - h)^2 + k ___ (h,k) is the vertex and the \"a\" is related to the shape\r<BR>\n" );
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document.write( "separating out a perfect square ___ y = x^2 + 2x + 1 - 25 = (x + 1)^2 - 25\r<BR>\n" );
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document.write( "so the vertex is (-1,-25)\r<BR>\n" );
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document.write( "the x-intercepts (roots) are when y equals zero ___ factoring ___ 0 = (x + 6)(x - 4)\r<BR>\n" );
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document.write( "the y intercept is when x equals zero ___ y = (0)^2 + 2(0) - 24\r<BR>\n" );
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document.write( "this gives you four points to sketch the parabola<BR>\n" );
document.write( "remember that the vertex is the \"nose\" of the parabola and it is on the axis of symmetry </SPAN>\n" );
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