document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=830051>Question 830051</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the equation of a parabola with a vertex of (-2,-3) and contains the point (1,2)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500312 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=500312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write the equation of a parabola with a vertex of (-2,-3) and contains the point (1,2) <BR>\n" );
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document.write( "Assuming the parabola opens up you get:<BR>\n" );
document.write( "y = a(x+2)-3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Solve for \"a\":<BR>\n" );
document.write( "2 = a(1+2)-3<BR>\n" );
document.write( "------<BR>\n" );
document.write( "2 = 3a - 3<BR>\n" );
document.write( "3a = 5<BR>\n" );
document.write( "a = (5/3)<BR>\n" );
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document.write( "y = (5/3)(x+2)-3<BR>\n" );
document.write( "----<BR>\n" );
document.write( "y = (5/3)x + (10/3)-(9/3)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "y = (5/3)x + (1/3)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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