document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=438558>Question 438558</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you state this in standard form and how is it graphed? I am trying to figure out lines of symmetry, domain, and range.\r<BR>\n" );
document.write( "\n" );
document.write( "16x squared + 4y squared = 25. \r<BR>\n" );
document.write( "\n" );
document.write( "thanks!\r<BR>\n" );
document.write( "\n" );
document.write( "Zach </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303282 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=303282\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hmm...\"16x squared + 4y squared = 25\"\r<BR>\n" );
document.write( "\n" );
document.write( "That's an ellipse,  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16x%5E2+%2B+4y%5E2+=+25 ALIGN=MIDDLE  ALT=\"16x%5E2+%2B+4y%5E2+=+25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2F%2825%2F16%29+%2B+y%5E2%2F%2825%2F4%29+=+1 ALIGN=MIDDLE  ALT=\"x%5E2%2F%2825%2F16%29+%2B+y%5E2%2F%2825%2F4%29+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" > in standard form.\r<BR>\n" );
document.write( "\n" );
document.write( "There are two lines of symmetry,namely x = 0 and y = 0.\r<BR>\n" );
document.write( "\n" );
document.write( "The domain can be gotten from the minor axis, which is along the x-axis:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2825%2F16%29+=+5%2F4 ALIGN=MIDDLE  ALT=\"sqrt%2825%2F16%29+=+5%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Hence the domain is [-5/4, 5/4].<BR>\n" );
document.write( "The range can be gotten from the major axis, which is along the y-axis:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2825%2F4%29+=+5%2F2 ALIGN=MIDDLE  ALT=\"sqrt%2825%2F4%29+=+5%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Hence the range is [-5/2, 5/2].\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28+300%2C+200%2C+-5%2C+5%2C+-5%2C+5%2C+sqrt%2825+-+16x%5E2%29%2F2%2C+-sqrt%2825+-+16x%5E2%29%2F2%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );