document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1088542>Question 1088542</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "  A line with a slope of 8 passes through the points (0,z) and (2,9). What is the value of z?\r<BR>\n" );
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document.write( "    z=\r<BR>\n" );
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document.write( "thank you  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #702810 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=702810\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "slope = m = (y2-y1)/(x2-x1) = (z-9)/(0-2) = (z-9)/(-2) = 8\r<BR>\n" );
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document.write( "z-9 = -16<BR>\n" );
document.write( "Ans:   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+highlight%28z+=+-7%29+ ALIGN=MIDDLE  ALT=\"+highlight%28z+=+-7%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "—\r<BR>\n" );
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document.write( "Check:   (-7-9)/(0-2) = -16/(-2) = 8 (ok)<BR>\n" );
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document.write( "On a side note: you are free to choose which point is (x1,y1) and (x2,y2).  I chose (x1,y1)=(2,9) and (x2,y2)=(0,z) but you can prove it to yourself by reversing them.\r<BR>\n" );
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