document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205699>Question 205699</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The equation of the line L is 3y - x=9.  Find<BR>\n" );
document.write( "a)	The coordinates of the point where l intersects the y- axis.<BR>\n" );
document.write( "b)	The equation of the line which is parallel to l and which passes through the point (0, -5)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #156987 by </B><A HREF=/tutors/aboutme.mpl?userid=tutor_paul><B>tutor_paul(519)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutor_paul><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=tutor_paul><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=156987\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3y-x=9 ALIGN=MIDDLE  ALT=\"3y-x=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The point where a line crosses the Y-axis is called the \"Y-Intercept.\" The easiest way to determine the Y intercept when you are given the equation of the line is to write the equation in y=mx+b form. the \"b\" term is then just read off the equation as the Y-intercept.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3y-x=9 ALIGN=MIDDLE  ALT=\"3y-x=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3y=x%2B9 ALIGN=MIDDLE  ALT=\"3y=x%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=x%2F3%2B3 ALIGN=MIDDLE  ALT=\"y=x%2F3%2B3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So now that you have the equation written in the proper form, you can easily see that the Y-intercept=3.<BR>\n" );
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document.write( "To do the 2nd part of the problem, you need to know that 2 lines are parallel if they have the same slope. When the equation of a line is written in y=mx+b form, the slope is just the \"m\" term. In our case, the slope is 1/3. You are also given the fact that the line passes through the point (0,-5). Since the x term of this coordinate is zero, you know that the Y-intercept is just the Y-coordinate, which is -5. So now that you have the slope and the Y-intercept, it is a simple matter to write the equation of this second line:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=x%2F3-5%29 ALIGN=MIDDLE  ALT=\"highlight%28y=x%2F3-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Good Luck,<BR>\n" );
document.write( "tutor_paul@yahoo.com<BR>\n" );
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