document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=978623>Question 978623</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A parabola has an x intercept at 2, its axis symmetry is the line x=4 and the y coordinate of its vertex is 6. Determine the equation of the parabola. How do I begin to solve this?  There is a hint y-r=a(x-t)^2.  Not sure how to use that. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #599998 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=599998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Almost.  Use one more term, although shown with different variables:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=a%28x-h%29%5E2%2Bk ALIGN=MIDDLE  ALT=\"y=a%28x-h%29%5E2%2Bk\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  \r<BR>\n" );
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document.write( "The vertex is  (4,6) which corresponds to (h,k).  The given x-intercept is  (2,0) and because of symmetry, the other is  (6,0).  So far you have enough to know  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=a%28x-4%29%5E2%2B6 ALIGN=MIDDLE  ALT=\"y=a%28x-4%29%5E2%2B6\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Solve for a, and then substitute either coordinate values for either x-intercept... </SPAN>\n" );
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