document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1127624>Question 1127624</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the distance from point A to XZ&#8592;&#8594;. Round your answer to the nearest tenth.<BR>\n" );
document.write( "A(3,0) X(-1,-2) Z(2,7) Y(0,1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #744062 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=744062\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the distance from point A to XZ. Round your answer to the nearest tenth.<BR>\n" );
document.write( "A(3,0) X(-1,-2) Z(2,7) Y(0,1)<BR>\n" );
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document.write( "Point Y is not involved.<BR>\n" );
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document.write( "There's more than 1 way to do this.<BR>\n" );
document.write( "Method 1:<BR>\n" );
document.write( "Find the slope of XZ.<BR>\n" );
document.write( "Slope m = diffy/diffx<BR>\n" );
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document.write( "The distance from a point to a line is perpendicular to the line.<BR>\n" );
document.write( "The slope of lines perpendicular is the negative inverse of the slope of the line, = -1/m<BR>\n" );
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document.write( "Use y-y1 = (-1/m)*(x-x1) where (x1,y1) is the point and -1/m is the slope of the perpendicular line.<BR>\n" );
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document.write( "A 2nd method requires knowing a formula, which makes it less attractive IMO.<BR>\n" );
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