document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=801277>Question 801277</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ( 7 ,1 ) and is perpendicular to the line 5 x + 2 y = 5 can be written in the form y = mx+b where m is -3.5 solve for b </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #483490 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=483490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This question seems to be a mixture of wording from two different problems. I cannot have much faith on my guess about what the problem was supposed to be, but I hope my answer helps anyway.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+x+%2B+2+y+=+5 ALIGN=MIDDLE  ALT=\"5+x+%2B+2+y+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > can be written in the form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+mx%2Bb ALIGN=MIDDLE  ALT=\"y+=+mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-2.5x%2B2.5 ALIGN=MIDDLE  ALT=\"y=-2.5x%2B2.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "That can be found by solving for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" >:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%2B2y=5 ALIGN=MIDDLE  ALT=\"5x%2B2y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2y=5-5x ALIGN=MIDDLE  ALT=\"2y=5-5x\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.5%282y%29=0.5%285-5x%29 ALIGN=MIDDLE  ALT=\"0.5%282y%29=0.5%285-5x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=2.5-2.5x ALIGN=MIDDLE  ALT=\"y=2.5-2.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "When the equation of a line is in such a form, the coefficient of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > is the slope of the line.<BR>\n" );
document.write( "So the slope of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+x+%2B+2+y+=+5 ALIGN=MIDDLE  ALT=\"5+x+%2B+2+y+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2.5 ALIGN=MIDDLE  ALT=\"-2.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( " <BR>\n" );
document.write( "A line perpendicular to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+x+%2B+2+y+=+5 ALIGN=MIDDLE  ALT=\"5+x+%2B+2+y+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > must have a slope of<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28-1%29%2F%28-2.5%29 ALIGN=MIDDLE  ALT=\"m=%28-1%29%2F%28-2.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=0.4 ALIGN=MIDDLE  ALT=\"m=0.4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " <BR>\n" );
document.write( "All lines perpendicular to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+x+%2B+2+y+=+5 ALIGN=MIDDLE  ALT=\"5+x+%2B+2+y+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > will have as an equation in the form <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+mx%2Bb ALIGN=MIDDLE  ALT=\"y+=+mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "an equation represented by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.4x%2Bb ALIGN=MIDDLE  ALT=\"y=0.4x%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( " <BR>\n" );
document.write( "The one an only one of those lines perpendicular to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+x+%2B+2+y+=+5 ALIGN=MIDDLE  ALT=\"5+x+%2B+2+y+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > that passes through point (7,1) will have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system+%28x=7%2Cy=1%29 ALIGN=MIDDLE  ALT=\"system+%28x=7%2Cy=1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > as a solution to<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.4x%2Bb ALIGN=MIDDLE  ALT=\"y=0.4x%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So we will have<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1=0.4%2A7%2Bb ALIGN=MIDDLE  ALT=\"1=0.4%2A7%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1=2.8%2Bb ALIGN=MIDDLE  ALT=\"1=2.8%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=1-2.8 ALIGN=MIDDLE  ALT=\"b=1-2.8\"   DISABLED_style= \"max-width:90%; height:auto;\" > --> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=-1.8 ALIGN=MIDDLE  ALT=\"b=-1.8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the line perpendicular to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5+x+%2B+2+y+=+5 ALIGN=MIDDLE  ALT=\"5+x+%2B+2+y+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" > and passing through (7,1) has the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.4x-1.8 ALIGN=MIDDLE  ALT=\"y=0.4x-1.8\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "The same equation can be written in many ways.<BR>\n" );
document.write( "For example, multiplying both sides times 5 we get the equivalent equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5y=2x-9 ALIGN=MIDDLE  ALT=\"5y=2x-9\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "And that can be transformed into the equivalent equations<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x-5y-9=0 ALIGN=MIDDLE  ALT=\"2x-5y-9=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x-5y=9 ALIGN=MIDDLE  ALT=\"2x-5y=9\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );