document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=288672>Question 288672</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The equation of a mirror in a particular telscope is y = x2/780 where x is the radius and y is the depth in centimeters.  Graph this equation on your own, then state whether it is parabolic, elliptical, or hyperbolic. \r<BR>\n" );
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document.write( "Super confused with this question, I really don't understand where to start from, please help me! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #209212 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=209212\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since we can write <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=x%5E2%2F780 ALIGN=MIDDLE  ALT=\"y=x%5E2%2F780\"   DISABLED_style= \"max-width:90%; height:auto;\" > as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F780%29x%5E2 ALIGN=MIDDLE  ALT=\"y=%281%2F780%29x%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is the form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=ax%5E2%2Bbx%2Bc ALIGN=MIDDLE  ALT=\"y=ax%5E2%2Bbx%2Bc\"   DISABLED_style= \"max-width:90%; height:auto;\" > (a parabola), this means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=x%5E2%2F780 ALIGN=MIDDLE  ALT=\"y=x%5E2%2F780\"   DISABLED_style= \"max-width:90%; height:auto;\" > is a parabola.\r<BR>\n" );
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document.write( "Graph it to get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+500%2C+500%2C+-20%2C+20%2C+-5%2C+5%2C+%281%2F780%29%2Ax%5E2%29+ ALIGN=MIDDLE  ALT=\"+graph%28+500%2C+500%2C+-20%2C+20%2C+-5%2C+5%2C+%281%2F780%29%2Ax%5E2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Take note that the scale of the x and y axes are not equal. I did this to show what the graph looked like. In a normal setting, you probably won't see the graph. </SPAN>\n" );
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