document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1060769>Question 1060769</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A parabolic arch supports a bridge. The arch is 200 m wide at its base and 4 m tall in the middle.\r<BR>\n" );
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document.write( "a) Show this information on a graph by placing the vertex on the y-axis so that the x-axis represents the base of the arch\r<BR>\n" );
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document.write( "b) How high is a point on the arch that is 20 m horizontally from one end? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #675641 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=675641\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ----------------------------------------------------------------------------<BR>\n" );
document.write( "A parabolic arch supports a bridge. The arch is 200 m wide at its base and 4 m tall in the middle.\r<BR>\n" );
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document.write( "a) Show this information on a graph by placing the vertex on the y-axis so that the x-axis represents the base of the arch<BR>\n" );
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document.write( "Vertex (0,4);<BR>\n" );
document.write( "Horizontal Axis Intercepts  (0,-100) and (0,100).\r<BR>\n" );
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document.write( "The vertex will indicate a standard form like  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=kx%5E2%2B4 ALIGN=MIDDLE  ALT=\"y=kx%5E2%2B4\"   DISABLED_style= \"max-width:90%; height:auto;\" >; <BR>\n" );
document.write( "and the zeros indicate something like  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=k%28x%2B100%29%28x-100%29 ALIGN=MIDDLE  ALT=\"y=k%28x%2B100%29%28x-100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "The two expressions for y should be equal.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kx%5E2%2B4=k%28x%2B100%29%28x-100%29 ALIGN=MIDDLE  ALT=\"kx%5E2%2B4=k%28x%2B100%29%28x-100%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=kx%5E2%2B4=kx%5E2-10000k ALIGN=MIDDLE  ALT=\"kx%5E2%2B4=kx%5E2-10000k\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10000k=-4 ALIGN=MIDDLE  ALT=\"10000k=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=-4%2F10000 ALIGN=MIDDLE  ALT=\"k=-4%2F10000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28k=-1%2F2500%29 ALIGN=MIDDLE  ALT=\"highlight_green%28k=-1%2F2500%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You may choose possible equations as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28y=-%281%2F2500%29x%5E2%2B4%2C+OR%2C+y=-%281%2F2500%29%28x%2B100%29%28x-100%29%2COR%2C+AsGeneralFormFullyMultiplied%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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