document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=606513>Question 606513</A>: <I><SPAN STYLE=\"word-break: break-all;\">  I am trying to write an equation for a parabola that has been sketched in my math book. I need it in standard form. x-h=a(y-k)^2. <BR>\n" );
document.write( " The points given in the graph are (-1,2), (0,1), (0,3), (3,0), and (3,4).<BR>\n" );
document.write( " I know that h=-1 and k=2 because those are the coordinates of the vertex, but I'm not sure what the 'a' represents or how to solve for it. Thanks!<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #382088 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=382088\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I need it in standard form. x-h=a(y-k)^2. <BR>\n" );
document.write( "The points given in the graph are (-1,2), (0,1), (0,3), (3,0), and (3,4).<BR>\n" );
document.write( "I know that h=-1 and k=2 because those are the coordinates of the vertex, but I'm not sure what the 'a' represents or how to solve for it.<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Since you \"know\" that h = -1 and k = 2, you have:<BR>\n" );
document.write( "x+1 = a(y-2)^2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Use one of the points to solve for \"a\":<BR>\n" );
document.write( "Using (3,4) you get:<BR>\n" );
document.write( "3+1 = a(4-2)^2<BR>\n" );
document.write( "4 = a(4)<BR>\n" );
document.write( "a = 1<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "x+1 = (y-2)^2<BR>\n" );
document.write( "x = (y-2)^2 - 1<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "==================== <BR>\n" );
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