document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=416022>Question 416022</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the equation of the line going through (5,-7) and having a slope that is undefined. </SPAN>\n" );
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document.write( "If the slope is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=undefined ALIGN=MIDDLE  ALT=\"undefined\"   DISABLED_style= \"max-width:90%; height:auto;\" >, it means that the line is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=vertical ALIGN=MIDDLE  ALT=\"vertical\"   DISABLED_style= \"max-width:90%; height:auto;\" >, thus we need only know the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-coordinate ALIGN=MIDDLE  ALT=\"x-coordinate\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "So the line is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=5 ALIGN=MIDDLE  ALT=\"x=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > (vertical line that passes through (5,-7))\r<BR>\n" );
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