document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=212889>Question 212889</A>: <I><SPAN STYLE=\"word-break: break-all;\"> determine if lines l1 and l2 are parallel, perperdicular or neither<BR>\n" );
document.write( "l1:y=10/9x-1/7<BR>\n" );
document.write( "l2:y=9/10x-9/10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #160825 by </B><A HREF=/tutors/aboutme.mpl?userid=drj><B>drj(1380)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drj><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=drj><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=160825\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine if lines l1 and l2 are parallel, perperdicular or neither\r<BR>\n" );
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document.write( "l1:y=10/9x-1/7 (slope-intercept form)<BR>\n" );
document.write( "l2:y=9/10x-9/10 (slope-intercept form)\r<BR>\n" );
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document.write( "Step 1.  Line 1 has slope of 10/9 and Line 2 has slope of 9/10 by looking at slope-intercept form of y=mx+b where m is the slope and b is the y-intercept.\r<BR>\n" );
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document.write( "Step 2.  Since the slopes of Line 1 and 2 are not equal they are not parallel.\r<BR>\n" );
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document.write( "Step 3.  Since the product of the two slopes does not equal to -1 they are not perpendicular.  The product is 1 in this case since (10/9)(9/10)=1\r<BR>\n" );
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document.write( "Step 4.  Therefore the lines are neither perpendicular nor parallel.\r<BR>\n" );
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document.write( "I hope the above steps were helpful.\r<BR>\n" );
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document.write( "For FREE Step-By-Step videos in Introduction to Algebra, please visit <BR>\n" );
document.write( "http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit <BR>\n" );
document.write( "http://www.FreedomUniversity.TV/courses/Trigonometry.\r<BR>\n" );
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document.write( "Good luck in your studies!\r<BR>\n" );
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document.write( "Respectfully,<BR>\n" );
document.write( "Dr J </SPAN>\n" );
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