document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=917448>Question 917448</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #556775 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=556775\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward. <BR>\n" );
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document.write( "equation of a parabola that opens upward with vertex at the origin: x^2=4py<BR>\n" );
document.write( "p=2 (distance from vertex to focus)<BR>\n" );
document.write( "4p=4<BR>\n" );
document.write( "equation: x^2=4y </SPAN>\n" );
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