document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=607161>Question 607161</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help!I thought I had the correct answers, but I got them wrong.<BR>\n" );
document.write( "find the intercepts and traces for the graph 7x + 3y-z = 42\r<BR>\n" );
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document.write( "x-intercept (I had 5,0,0) y-intercept ( I had 0,2,-1) z-intercept (I had 0,0,-1)\r<BR>\n" );
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document.write( "xy trace (I had 5,2,0) yz trace (I had (0,2,-1)  xz trace (I had 5,0,1)\r<BR>\n" );
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document.write( "thank you so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #382463 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=382463\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-intercept: plug in y = 0 and z = 0 and solve for x\r<BR>\n" );
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document.write( "7x + 3y-z = 42 \r<BR>\n" );
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document.write( "7x + 3(0)-0 = 42 \r<BR>\n" );
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document.write( "7x + 0 - 0 = 42\r<BR>\n" );
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document.write( "7x = 42 \r<BR>\n" );
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document.write( "x = 42/7\r<BR>\n" );
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document.write( "x = 6\r<BR>\n" );
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document.write( "So the x-intercept is (6,0,0)\r<BR>\n" );
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document.write( "y-intercept: plug in x = 0 and z = 0 and solve for y\r<BR>\n" );
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document.write( "7x + 3y-z = 42 \r<BR>\n" );
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document.write( "7(0) + 3y-0 = 42 \r<BR>\n" );
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document.write( "0 + 3y - 0 = 42\r<BR>\n" );
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document.write( "3y = 42\r<BR>\n" );
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document.write( "y = 42/3\r<BR>\n" );
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document.write( "y = 14\r<BR>\n" );
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document.write( "So the y-intercept is (0,14,0)\r<BR>\n" );
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document.write( "z-intercept: plug in x = 0 and y = 0 and solve for z\r<BR>\n" );
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document.write( "7x + 3y-z = 42 \r<BR>\n" );
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document.write( "7(0) + 3(0)-z = 42 \r<BR>\n" );
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document.write( "0 + 0 - z = 42\r<BR>\n" );
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document.write( "-z = 42\r<BR>\n" );
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document.write( "z = -42\r<BR>\n" );
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document.write( "So the z-intercept is (0,0,-42)\r<BR>\n" );
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document.write( "====================================================================================\r<BR>\n" );
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document.write( "xy trace: Plug in z = 0 \r<BR>\n" );
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document.write( "7x + 3y-z = 42 \r<BR>\n" );
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document.write( "7x + 3y - 0 = 42 \r<BR>\n" );
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document.write( "7x + 3y = 42 \r<BR>\n" );
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document.write( "So the xy trace is 7x + 3y = 42 (note: this is a line and NOT a point)\r<BR>\n" );
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document.write( "yz trace: plug in x = 0\r<BR>\n" );
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document.write( "7x + 3y-z = 42 \r<BR>\n" );
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document.write( "7(0) + 3y-z = 42 \r<BR>\n" );
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document.write( "0 + 3y-z = 42 \r<BR>\n" );
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document.write( "3y-z = 42 \r<BR>\n" );
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document.write( "So the yz trace is 3y-z = 42 \r<BR>\n" );
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document.write( "===================================================================================\r<BR>\n" );
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document.write( "xz trace: plug in y = 0\r<BR>\n" );
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document.write( "7x + 3y-z = 42 \r<BR>\n" );
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document.write( "7x + 3(0)-z = 42 \r<BR>\n" );
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document.write( "7x + 0 -z = 42 \r<BR>\n" );
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document.write( "7x - z = 42 \r<BR>\n" );
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document.write( "So the xz trace is 7x - z = 42  </SPAN>\n" );
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