document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=632535>Question 632535</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the slope, if it exists, of the line containing the pair of two points(-19,-16)(-20,-18) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #398349 by </B><A HREF=/tutors/aboutme.mpl?userid=lenny460><B>lenny460(1073)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lenny460><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=lenny460><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=398349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the slope, if it exists, of the line containing the pair of two points(-19,-16)(-20,-18)\r<BR>\n" );
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document.write( "We use the slope formula:\r<BR>\n" );
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document.write( "(y2 - y1)/(x2 - x1)\r<BR>\n" );
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document.write( "(-18 -(-16)/(-20 - (-19)\r<BR>\n" );
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document.write( "-18 -(-16) = -18 + 16 = -2\r<BR>\n" );
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document.write( "-20 -(-19) = -20 + 19 = -1\r<BR>\n" );
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document.write( "Therefore:\r<BR>\n" );
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document.write( "-2/-1 = 2\r<BR>\n" );
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document.write( "The Slope: 2\r<BR>\n" );
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document.write( "Now let's find out the equation of the line:\r<BR>\n" );
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document.write( "(y - y1) = m(x - x1)\r<BR>\n" );
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document.write( "y - (-16) = 2(x - (-19)\r<BR>\n" );
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document.write( "y - (-16) = y + 16\r<BR>\n" );
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document.write( "x - (-19) = x + 19\r<BR>\n" );
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document.write( "y + 16 = 2(x + 19)\r<BR>\n" );
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document.write( "2 * x = 2x\r<BR>\n" );
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document.write( "2 * 19 = 38\r<BR>\n" );
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document.write( "y + 16 = 2x + 38\r<BR>\n" );
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document.write( "Subtract 16 from each side of the equation.\r<BR>\n" );
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document.write( "y + 16 - 16 = 2x + 38 - 16\r<BR>\n" );
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document.write( "Combine like terms:\r<BR>\n" );
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document.write( "16 - 16 = 0\r<BR>\n" );
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document.write( "38 - 16 = 22\r<BR>\n" );
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document.write( "The equation of the line:\r<BR>\n" );
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document.write( "y = 2x + 22\r<BR>\n" );
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document.write( "The Slope: 2\r<BR>\n" );
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document.write( "Lennox Obuong<BR>\n" );
document.write( "Algebra Student<BR>\n" );
document.write( "obuong3@aol.com </SPAN>\n" );
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