document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=27107>Question 27107</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Here is the question on my quiz sheet-\r<BR>\n" );
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document.write( "Find the slopes of the lines that are (a) parallel and (b) perpendicular to the line through the pair of points\r<BR>\n" );
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document.write( "(-3,-3) and (2, 2)<BR>\n" );
document.write( " x1 y1      x2  y2 (so you see what i did)\r<BR>\n" );
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document.write( "The possible answers are -1;1,  0;0,  1;-1,  -3/2; 2/3 I chose -1;1\r<BR>\n" );
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document.write( "I got -1 by taking 2-3 (y2-y1)=-1 and 2-3 (x2-x1)=-1 but I do not know how to find perpendicular or if I am even doing this problem correctly to begin with.  I am having a very hard time period with graphing.  Thank you so much for any help that you can give me so that I understand (or try to) what exactly I am supposed to be doing.  If I can understand how this problem works then I should be able to figure out how the other one is figured out on my quiz.  thanks again...Angi </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #14755 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=14755\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You were actually on the right track, very good.<BR>\n" );
document.write( "The one mistake you did when figuring out the slope;<BR>\n" );
document.write( "The fromula;<BR>\n" );
document.write( "m=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y2-y1%29%2F%28x2-x1%29 ALIGN=MIDDLE  ALT=\"%28y2-y1%29%2F%28x2-x1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "When you subtract the y2-y1 and x2-x1,<BR>\n" );
document.write( "you will actutally add;<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282-%28-3%29%29%2F%282-%28-3%29%29 ALIGN=MIDDLE  ALT=\"%282-%28-3%29%29%2F%282-%28-3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "youforgot to change the sign of the -3 to +3, that would make you adding;<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282%2B3%29%2F%282%2B3%29 ALIGN=MIDDLE  ALT=\"%282%2B3%29%2F%282%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F5 ALIGN=MIDDLE  ALT=\"5%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >=1<BR>\n" );
document.write( "So the slope of a parallel line would be 1, and then a perpendicular line would be -1;<BR>\n" );
document.write( "You were doing great, at least you remembered the formula, you made the mistake SO MANY students make, watch those signs!!!<BR>\n" );
document.write( "Good Luck on your test<BR>\n" );
document.write( "=) </SPAN>\n" );
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