document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=61867>Question 61867</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There is a meteor shower.  One meteor appears at A(7,8) and disappears at B (1,4).<BR>\n" );
document.write( "Calculate the gradient of the meteor's flight path.<BR>\n" );
document.write( "calculate the acute angle between the flight path and the horizon (OX) correct to the nearest degree.\r<BR>\n" );
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document.write( "A second meteor, on a parallel path, starts at C(6,2) and disappears below the horizon at D. Find the co-ordinates of D. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #42611 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=42611\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> slope of path between (7,8) and (1,4) = (8-4) / (7-1) = 2/3<BR>\n" );
document.write( "angle between path and horizon = inverse tan(2/3) = 33.7 degrees<BR>\n" );
document.write( "2nd meteor path through (6,2)<BR>\n" );
document.write( "y = (2/3)x + b<BR>\n" );
document.write( "2 = (2/3)6 + b<BR>\n" );
document.write( "2 = 4 + b<BR>\n" );
document.write( "b = -2<BR>\n" );
document.write( "y = (2/3)x - 2<BR>\n" );
document.write( "at horizon point DE is (x,0), find x coordinate<BR>\n" );
document.write( "0 = (2/3)x - 2<BR>\n" );
document.write( "(2/3)x = 2<BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "at horizon point DE is (3,0) </SPAN>\n" );
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